257172720

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{3257}}^1$

素因数の和:3327

約数の個数: 160

約数和(自身を含む): 930797568

約数和(自身を除く): 673624848

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 47, 48, 56, 60, 70, 80, 84, 94, 105, 112, 120, 140, 141, 168, 188, 210, 235, 240, 280, 282, 329, 336, 376, 420, 470, 560, 564, 658, 705, 752, 840, 940, 987, 1128, 1316, 1410, 1645, 1680, 1880, 1974, 2256, 2632, 2820, 3257, 3290, 3760, 3948, 4935, 5264, 5640, 6514, 6580, 7896, 9771, 9870, 11280, 13028, 13160, 15792, 16285, 19542, 19740, 22799, 26056, 26320, 32570, 39084, 39480, 45598, 48855, 52112, 65140, 68397, 78168, 78960, 91196, 97710, 113995, 130280, 136794, 153079, 156336, 182392, 195420, 227990, 260560, 273588, 306158, 341985, 364784, 390840, 455980, 459237, 547176, 612316, 683970, 765395, 781680, 911960, 918474, 1071553, 1094352, 1224632, 1367940, 1530790, 1823920, 1836948, 2143106, 2296185, 2449264, 2735880, 3061580, 3214659, 3673896, 4286212, 4592370, 5357765, 5471760, 6123160, 6429318, 7347792, 8572424, 9184740, 10715530, 12246320, 12858636, 16073295, 17144848, 18369480, 21431060, 25717272, 32146590, 36738960, 42862120, 51434544, 64293180, 85724240, 128586360, 257172720]

約数ペア:

[(1, 257172720), (2, 128586360), (3, 85724240), (4, 64293180), (5, 51434544), (6, 42862120), (7, 36738960), (8, 32146590), (10, 25717272), (12, 21431060), (14, 18369480), (15, 17144848), (16, 16073295), (20, 12858636), (21, 12246320), (24, 10715530), (28, 9184740), (30, 8572424), (35, 7347792), (40, 6429318), (42, 6123160), (47, 5471760), (48, 5357765), (56, 4592370), (60, 4286212), (70, 3673896), (80, 3214659), (84, 3061580), (94, 2735880), (105, 2449264), (112, 2296185), (120, 2143106), (140, 1836948), (141, 1823920), (168, 1530790), (188, 1367940), (210, 1224632), (235, 1094352), (240, 1071553), (280, 918474), (282, 911960), (329, 781680), (336, 765395), (376, 683970), (420, 612316), (470, 547176), (560, 459237), (564, 455980), (658, 390840), (705, 364784), (752, 341985), (840, 306158), (940, 273588), (987, 260560), (1128, 227990), (1316, 195420), (1410, 182392), (1645, 156336), (1680, 153079), (1880, 136794), (1974, 130280), (2256, 113995), (2632, 97710), (2820, 91196), (3257, 78960), (3290, 78168), (3760, 68397), (3948, 65140), (4935, 52112), (5264, 48855), (5640, 45598), (6514, 39480), (6580, 39084), (7896, 32570), (9771, 26320), (9870, 26056), (11280, 22799), (13028, 19740), (13160, 19542), (15792, 16285)]