19545240

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1$

素因数の和:122

約数の個数: 256

約数和(自身を含む): 74027520

約数和(自身を除く): 54482280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 13, 15, 17, 20, 22, 24, 26, 30, 33, 34, 39, 40, 44, 51, 52, 55, 60, 65, 66, 67, 68, 78, 85, 88, 102, 104, 110, 120, 130, 132, 134, 136, 143, 156, 165, 170, 187, 195, 201, 204, 220, 221, 255, 260, 264, 268, 286, 312, 330, 335, 340, 374, 390, 402, 408, 429, 440, 442, 510, 520, 536, 561, 572, 660, 663, 670, 680, 715, 737, 748, 780, 804, 858, 871, 884, 935, 1005, 1020, 1105, 1122, 1139, 1144, 1320, 1326, 1340, 1430, 1474, 1496, 1560, 1608, 1716, 1742, 1768, 1870, 2010, 2040, 2145, 2210, 2211, 2244, 2278, 2431, 2613, 2652, 2680, 2805, 2860, 2948, 3315, 3417, 3432, 3484, 3685, 3740, 4020, 4290, 4355, 4420, 4422, 4488, 4556, 4862, 5226, 5304, 5610, 5695, 5720, 5896, 6630, 6834, 6968, 7293, 7370, 7480, 8040, 8580, 8710, 8840, 8844, 9112, 9581, 9724, 10452, 11055, 11220, 11390, 12155, 12529, 13065, 13260, 13668, 14586, 14740, 14807, 17085, 17160, 17420, 17688, 19162, 19448, 20904, 22110, 22440, 22780, 24310, 25058, 26130, 26520, 27336, 28743, 29172, 29480, 29614, 34170, 34840, 36465, 37587, 38324, 44220, 44421, 45560, 47905, 48620, 50116, 52260, 57486, 58344, 59228, 62645, 68340, 72930, 74035, 75174, 76648, 88440, 88842, 95810, 97240, 100232, 104520, 114972, 118456, 125290, 136680, 143715, 145860, 148070, 150348, 162877, 177684, 187935, 191620, 222105, 229944, 250580, 287430, 291720, 296140, 300696, 325754, 355368, 375870, 383240, 444210, 488631, 501160, 574860, 592280, 651508, 751740, 814385, 888420, 977262, 1149720, 1303016, 1503480, 1628770, 1776840, 1954524, 2443155, 3257540, 3909048, 4886310, 6515080, 9772620, 19545240]

約数ペア:

[(1, 19545240), (2, 9772620), (3, 6515080), (4, 4886310), (5, 3909048), (6, 3257540), (8, 2443155), (10, 1954524), (11, 1776840), (12, 1628770), (13, 1503480), (15, 1303016), (17, 1149720), (20, 977262), (22, 888420), (24, 814385), (26, 751740), (30, 651508), (33, 592280), (34, 574860), (39, 501160), (40, 488631), (44, 444210), (51, 383240), (52, 375870), (55, 355368), (60, 325754), (65, 300696), (66, 296140), (67, 291720), (68, 287430), (78, 250580), (85, 229944), (88, 222105), (102, 191620), (104, 187935), (110, 177684), (120, 162877), (130, 150348), (132, 148070), (134, 145860), (136, 143715), (143, 136680), (156, 125290), (165, 118456), (170, 114972), (187, 104520), (195, 100232), (201, 97240), (204, 95810), (220, 88842), (221, 88440), (255, 76648), (260, 75174), (264, 74035), (268, 72930), (286, 68340), (312, 62645), (330, 59228), (335, 58344), (340, 57486), (374, 52260), (390, 50116), (402, 48620), (408, 47905), (429, 45560), (440, 44421), (442, 44220), (510, 38324), (520, 37587), (536, 36465), (561, 34840), (572, 34170), (660, 29614), (663, 29480), (670, 29172), (680, 28743), (715, 27336), (737, 26520), (748, 26130), (780, 25058), (804, 24310), (858, 22780), (871, 22440), (884, 22110), (935, 20904), (1005, 19448), (1020, 19162), (1105, 17688), (1122, 17420), (1139, 17160), (1144, 17085), (1320, 14807), (1326, 14740), (1340, 14586), (1430, 13668), (1474, 13260), (1496, 13065), (1560, 12529), (1608, 12155), (1716, 11390), (1742, 11220), (1768, 11055), (1870, 10452), (2010, 9724), (2040, 9581), (2145, 9112), (2210, 8844), (2211, 8840), (2244, 8710), (2278, 8580), (2431, 8040), (2613, 7480), (2652, 7370), (2680, 7293), (2805, 6968), (2860, 6834), (2948, 6630), (3315, 5896), (3417, 5720), (3432, 5695), (3484, 5610), (3685, 5304), (3740, 5226), (4020, 4862), (4290, 4556), (4355, 4488), (4420, 4422)]