251207880

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{877}}^1$

素因数の和:940

約数の個数: 256

約数和(自身を含む): 970997760

約数和(自身を除く): 719789880

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 14, 15, 20, 21, 22, 24, 28, 30, 31, 33, 35, 40, 42, 44, 55, 56, 60, 62, 66, 70, 77, 84, 88, 93, 105, 110, 120, 124, 132, 140, 154, 155, 165, 168, 186, 210, 217, 220, 231, 248, 264, 280, 308, 310, 330, 341, 372, 385, 420, 434, 440, 462, 465, 616, 620, 651, 660, 682, 744, 770, 840, 868, 877, 924, 930, 1023, 1085, 1155, 1240, 1302, 1320, 1364, 1540, 1705, 1736, 1754, 1848, 1860, 2046, 2170, 2310, 2387, 2604, 2631, 2728, 3080, 3255, 3410, 3508, 3720, 4092, 4340, 4385, 4620, 4774, 5115, 5208, 5262, 6139, 6510, 6820, 7016, 7161, 8184, 8680, 8770, 9240, 9548, 9647, 10230, 10524, 11935, 12278, 13020, 13155, 13640, 14322, 17540, 18417, 19096, 19294, 20460, 21048, 23870, 24556, 26040, 26310, 27187, 28644, 28941, 30695, 35080, 35805, 36834, 38588, 40920, 47740, 48235, 49112, 52620, 54374, 57288, 57882, 61390, 67529, 71610, 73668, 77176, 81561, 92085, 95480, 96470, 105240, 108748, 115764, 122780, 135058, 135935, 143220, 144705, 147336, 163122, 184170, 190309, 192940, 202587, 217496, 231528, 245560, 270116, 271870, 286440, 289410, 299057, 326244, 337645, 368340, 380618, 385880, 405174, 407805, 540232, 543740, 570927, 578820, 598114, 652488, 675290, 736680, 761236, 810348, 815610, 897171, 951545, 1012935, 1087480, 1141854, 1157640, 1196228, 1350580, 1495285, 1522472, 1620696, 1631220, 1794342, 1903090, 2025870, 2093399, 2283708, 2392456, 2701160, 2854635, 2990570, 3262440, 3588684, 3806180, 4051740, 4186798, 4485855, 4567416, 5709270, 5981140, 6280197, 7177368, 7612360, 8103480, 8373596, 8971710, 10466995, 11418540, 11962280, 12560394, 16747192, 17943420, 20933990, 22837080, 25120788, 31400985, 35886840, 41867980, 50241576, 62801970, 83735960, 125603940, 251207880]

約数ペア:

[(1, 251207880), (2, 125603940), (3, 83735960), (4, 62801970), (5, 50241576), (6, 41867980), (7, 35886840), (8, 31400985), (10, 25120788), (11, 22837080), (12, 20933990), (14, 17943420), (15, 16747192), (20, 12560394), (21, 11962280), (22, 11418540), (24, 10466995), (28, 8971710), (30, 8373596), (31, 8103480), (33, 7612360), (35, 7177368), (40, 6280197), (42, 5981140), (44, 5709270), (55, 4567416), (56, 4485855), (60, 4186798), (62, 4051740), (66, 3806180), (70, 3588684), (77, 3262440), (84, 2990570), (88, 2854635), (93, 2701160), (105, 2392456), (110, 2283708), (120, 2093399), (124, 2025870), (132, 1903090), (140, 1794342), (154, 1631220), (155, 1620696), (165, 1522472), (168, 1495285), (186, 1350580), (210, 1196228), (217, 1157640), (220, 1141854), (231, 1087480), (248, 1012935), (264, 951545), (280, 897171), (308, 815610), (310, 810348), (330, 761236), (341, 736680), (372, 675290), (385, 652488), (420, 598114), (434, 578820), (440, 570927), (462, 543740), (465, 540232), (616, 407805), (620, 405174), (651, 385880), (660, 380618), (682, 368340), (744, 337645), (770, 326244), (840, 299057), (868, 289410), (877, 286440), (924, 271870), (930, 270116), (1023, 245560), (1085, 231528), (1155, 217496), (1240, 202587), (1302, 192940), (1320, 190309), (1364, 184170), (1540, 163122), (1705, 147336), (1736, 144705), (1754, 143220), (1848, 135935), (1860, 135058), (2046, 122780), (2170, 115764), (2310, 108748), (2387, 105240), (2604, 96470), (2631, 95480), (2728, 92085), (3080, 81561), (3255, 77176), (3410, 73668), (3508, 71610), (3720, 67529), (4092, 61390), (4340, 57882), (4385, 57288), (4620, 54374), (4774, 52620), (5115, 49112), (5208, 48235), (5262, 47740), (6139, 40920), (6510, 38588), (6820, 36834), (7016, 35805), (7161, 35080), (8184, 30695), (8680, 28941), (8770, 28644), (9240, 27187), (9548, 26310), (9647, 26040), (10230, 24556), (10524, 23870), (11935, 21048), (12278, 20460), (13020, 19294), (13155, 19096), (13640, 18417), (14322, 17540)]