257583480

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{457}}^1$

素因数の和:550

約数の個数: 256

約数和(自身を含む): 981365760

約数和(自身を除く): 723782280

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 14, 15, 20, 21, 22, 24, 28, 30, 33, 35, 40, 42, 44, 55, 56, 60, 61, 66, 70, 77, 84, 88, 105, 110, 120, 122, 132, 140, 154, 165, 168, 183, 210, 220, 231, 244, 264, 280, 305, 308, 330, 366, 385, 420, 427, 440, 457, 462, 488, 610, 616, 660, 671, 732, 770, 840, 854, 914, 915, 924, 1155, 1220, 1281, 1320, 1342, 1371, 1464, 1540, 1708, 1828, 1830, 1848, 2013, 2135, 2285, 2310, 2440, 2562, 2684, 2742, 3080, 3199, 3355, 3416, 3656, 3660, 4026, 4270, 4570, 4620, 4697, 5027, 5124, 5368, 5484, 6398, 6405, 6710, 6855, 7320, 8052, 8540, 9140, 9240, 9394, 9597, 10054, 10065, 10248, 10968, 12796, 12810, 13420, 13710, 14091, 15081, 15995, 16104, 17080, 18280, 18788, 19194, 20108, 20130, 23485, 25135, 25592, 25620, 26840, 27420, 27877, 28182, 30162, 31990, 35189, 37576, 38388, 40216, 40260, 46970, 47985, 50270, 51240, 54840, 55754, 56364, 60324, 63980, 70378, 70455, 75405, 76776, 80520, 83631, 93940, 95970, 100540, 105567, 111508, 112728, 120648, 127960, 139385, 140756, 140910, 150810, 167262, 175945, 187880, 191940, 195139, 201080, 211134, 223016, 278770, 281512, 281820, 301620, 306647, 334524, 351890, 383880, 390278, 418155, 422268, 527835, 557540, 563640, 585417, 603240, 613294, 669048, 703780, 780556, 836310, 844536, 919941, 975695, 1055670, 1115080, 1170834, 1226588, 1407560, 1533235, 1561112, 1672620, 1839882, 1951390, 2111340, 2146529, 2341668, 2453176, 2927085, 3066470, 3345240, 3679764, 3902780, 4222680, 4293058, 4599705, 4683336, 5854170, 6132940, 6439587, 7359528, 7805560, 8586116, 9199410, 10732645, 11708340, 12265880, 12879174, 17172232, 18398820, 21465290, 23416680, 25758348, 32197935, 36797640, 42930580, 51516696, 64395870, 85861160, 128791740, 257583480]

約数ペア:

[(1, 257583480), (2, 128791740), (3, 85861160), (4, 64395870), (5, 51516696), (6, 42930580), (7, 36797640), (8, 32197935), (10, 25758348), (11, 23416680), (12, 21465290), (14, 18398820), (15, 17172232), (20, 12879174), (21, 12265880), (22, 11708340), (24, 10732645), (28, 9199410), (30, 8586116), (33, 7805560), (35, 7359528), (40, 6439587), (42, 6132940), (44, 5854170), (55, 4683336), (56, 4599705), (60, 4293058), (61, 4222680), (66, 3902780), (70, 3679764), (77, 3345240), (84, 3066470), (88, 2927085), (105, 2453176), (110, 2341668), (120, 2146529), (122, 2111340), (132, 1951390), (140, 1839882), (154, 1672620), (165, 1561112), (168, 1533235), (183, 1407560), (210, 1226588), (220, 1170834), (231, 1115080), (244, 1055670), (264, 975695), (280, 919941), (305, 844536), (308, 836310), (330, 780556), (366, 703780), (385, 669048), (420, 613294), (427, 603240), (440, 585417), (457, 563640), (462, 557540), (488, 527835), (610, 422268), (616, 418155), (660, 390278), (671, 383880), (732, 351890), (770, 334524), (840, 306647), (854, 301620), (914, 281820), (915, 281512), (924, 278770), (1155, 223016), (1220, 211134), (1281, 201080), (1320, 195139), (1342, 191940), (1371, 187880), (1464, 175945), (1540, 167262), (1708, 150810), (1828, 140910), (1830, 140756), (1848, 139385), (2013, 127960), (2135, 120648), (2285, 112728), (2310, 111508), (2440, 105567), (2562, 100540), (2684, 95970), (2742, 93940), (3080, 83631), (3199, 80520), (3355, 76776), (3416, 75405), (3656, 70455), (3660, 70378), (4026, 63980), (4270, 60324), (4570, 56364), (4620, 55754), (4697, 54840), (5027, 51240), (5124, 50270), (5368, 47985), (5484, 46970), (6398, 40260), (6405, 40216), (6710, 38388), (6855, 37576), (7320, 35189), (8052, 31990), (8540, 30162), (9140, 28182), (9240, 27877), (9394, 27420), (9597, 26840), (10054, 25620), (10065, 25592), (10248, 25135), (10968, 23485), (12796, 20130), (12810, 20108), (13420, 19194), (13710, 18788), (14091, 18280), (15081, 17080), (15995, 16104)]