257142480

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{269}}^1\times {\mathrm{569}}^1$

素因数の和:861

約数の個数: 160

約数和(自身を含む): 916012800

約数和(自身を除く): 658870320

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 269, 280, 336, 420, 538, 560, 569, 807, 840, 1076, 1138, 1345, 1614, 1680, 1707, 1883, 2152, 2276, 2690, 2845, 3228, 3414, 3766, 3983, 4035, 4304, 4552, 5380, 5649, 5690, 6456, 6828, 7532, 7966, 8070, 8535, 9104, 9415, 10760, 11298, 11380, 11949, 12912, 13656, 15064, 15932, 16140, 17070, 18830, 19915, 21520, 22596, 22760, 23898, 27312, 28245, 30128, 31864, 32280, 34140, 37660, 39830, 45192, 45520, 47796, 56490, 59745, 63728, 64560, 68280, 75320, 79660, 90384, 95592, 112980, 119490, 136560, 150640, 153061, 159320, 191184, 225960, 238980, 306122, 318640, 451920, 459183, 477960, 612244, 765305, 918366, 955920, 1071427, 1224488, 1530610, 1836732, 2142854, 2295915, 2448976, 3061220, 3214281, 3673464, 4285708, 4591830, 5357135, 6122440, 6428562, 7346928, 8571416, 9183660, 10714270, 12244880, 12857124, 16071405, 17142832, 18367320, 21428540, 25714248, 32142810, 36734640, 42857080, 51428496, 64285620, 85714160, 128571240, 257142480]

約数ペア:

[(1, 257142480), (2, 128571240), (3, 85714160), (4, 64285620), (5, 51428496), (6, 42857080), (7, 36734640), (8, 32142810), (10, 25714248), (12, 21428540), (14, 18367320), (15, 17142832), (16, 16071405), (20, 12857124), (21, 12244880), (24, 10714270), (28, 9183660), (30, 8571416), (35, 7346928), (40, 6428562), (42, 6122440), (48, 5357135), (56, 4591830), (60, 4285708), (70, 3673464), (80, 3214281), (84, 3061220), (105, 2448976), (112, 2295915), (120, 2142854), (140, 1836732), (168, 1530610), (210, 1224488), (240, 1071427), (269, 955920), (280, 918366), (336, 765305), (420, 612244), (538, 477960), (560, 459183), (569, 451920), (807, 318640), (840, 306122), (1076, 238980), (1138, 225960), (1345, 191184), (1614, 159320), (1680, 153061), (1707, 150640), (1883, 136560), (2152, 119490), (2276, 112980), (2690, 95592), (2845, 90384), (3228, 79660), (3414, 75320), (3766, 68280), (3983, 64560), (4035, 63728), (4304, 59745), (4552, 56490), (5380, 47796), (5649, 45520), (5690, 45192), (6456, 39830), (6828, 37660), (7532, 34140), (7966, 32280), (8070, 31864), (8535, 30128), (9104, 28245), (9415, 27312), (10760, 23898), (11298, 22760), (11380, 22596), (11949, 21520), (12912, 19915), (13656, 18830), (15064, 17070), (15932, 16140)]