251021680

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^2\times {\mathrm{41}}^1$

素因数の和:132

約数の個数: 240

約数和(自身を含む): 762076224

約数和(自身を除く): 511054544

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 29, 35, 40, 41, 52, 56, 58, 65, 70, 80, 82, 91, 104, 112, 116, 130, 140, 145, 164, 182, 203, 205, 208, 232, 260, 280, 287, 290, 328, 364, 377, 406, 410, 455, 464, 520, 533, 560, 574, 580, 656, 728, 754, 812, 820, 841, 910, 1015, 1040, 1066, 1148, 1160, 1189, 1435, 1456, 1508, 1624, 1640, 1682, 1820, 1885, 2030, 2132, 2296, 2320, 2378, 2639, 2665, 2870, 3016, 3248, 3280, 3364, 3640, 3731, 3770, 4060, 4205, 4264, 4592, 4756, 5278, 5330, 5740, 5887, 5945, 6032, 6728, 7280, 7462, 7540, 8120, 8323, 8410, 8528, 9512, 10556, 10660, 10933, 11480, 11774, 11890, 13195, 13456, 14924, 15080, 15457, 16240, 16646, 16820, 18655, 19024, 21112, 21320, 21866, 22960, 23548, 23780, 26390, 29435, 29848, 30160, 30914, 33292, 33640, 34481, 37310, 41615, 42224, 42640, 43732, 47096, 47560, 52780, 54665, 58870, 59696, 61828, 66584, 67280, 68962, 74620, 76531, 77285, 83230, 87464, 94192, 95120, 105560, 108199, 109330, 117740, 123656, 133168, 137924, 149240, 153062, 154570, 166460, 172405, 174928, 211120, 216398, 218660, 235480, 241367, 247312, 275848, 298480, 306124, 309140, 332920, 344810, 382655, 432796, 437320, 448253, 470960, 482734, 540995, 551696, 612248, 618280, 665840, 689620, 765310, 865592, 874640, 896506, 965468, 1081990, 1206835, 1224496, 1236560, 1379240, 1530620, 1731184, 1793012, 1930936, 2163980, 2241265, 2413670, 2758480, 3061240, 3137771, 3586024, 3861872, 4327960, 4482530, 4827340, 6122480, 6275542, 7172048, 8655920, 8965060, 9654680, 12551084, 15688855, 17930120, 19309360, 25102168, 31377710, 35860240, 50204336, 62755420, 125510840, 251021680]

約数ペア:

[(1, 251021680), (2, 125510840), (4, 62755420), (5, 50204336), (7, 35860240), (8, 31377710), (10, 25102168), (13, 19309360), (14, 17930120), (16, 15688855), (20, 12551084), (26, 9654680), (28, 8965060), (29, 8655920), (35, 7172048), (40, 6275542), (41, 6122480), (52, 4827340), (56, 4482530), (58, 4327960), (65, 3861872), (70, 3586024), (80, 3137771), (82, 3061240), (91, 2758480), (104, 2413670), (112, 2241265), (116, 2163980), (130, 1930936), (140, 1793012), (145, 1731184), (164, 1530620), (182, 1379240), (203, 1236560), (205, 1224496), (208, 1206835), (232, 1081990), (260, 965468), (280, 896506), (287, 874640), (290, 865592), (328, 765310), (364, 689620), (377, 665840), (406, 618280), (410, 612248), (455, 551696), (464, 540995), (520, 482734), (533, 470960), (560, 448253), (574, 437320), (580, 432796), (656, 382655), (728, 344810), (754, 332920), (812, 309140), (820, 306124), (841, 298480), (910, 275848), (1015, 247312), (1040, 241367), (1066, 235480), (1148, 218660), (1160, 216398), (1189, 211120), (1435, 174928), (1456, 172405), (1508, 166460), (1624, 154570), (1640, 153062), (1682, 149240), (1820, 137924), (1885, 133168), (2030, 123656), (2132, 117740), (2296, 109330), (2320, 108199), (2378, 105560), (2639, 95120), (2665, 94192), (2870, 87464), (3016, 83230), (3248, 77285), (3280, 76531), (3364, 74620), (3640, 68962), (3731, 67280), (3770, 66584), (4060, 61828), (4205, 59696), (4264, 58870), (4592, 54665), (4756, 52780), (5278, 47560), (5330, 47096), (5740, 43732), (5887, 42640), (5945, 42224), (6032, 41615), (6728, 37310), (7280, 34481), (7462, 33640), (7540, 33292), (8120, 30914), (8323, 30160), (8410, 29848), (8528, 29435), (9512, 26390), (10556, 23780), (10660, 23548), (10933, 22960), (11480, 21866), (11774, 21320), (11890, 21112), (13195, 19024), (13456, 18655), (14924, 16820), (15080, 16646), (15457, 16240)]