281128120

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^3\times {\mathrm{457}}^1$

素因数の和:514

約数の個数: 128

約数和(自身を含む): 784828800

約数和(自身を除く): 503700680

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 104, 130, 140, 169, 182, 260, 280, 338, 364, 455, 457, 520, 676, 728, 845, 910, 914, 1183, 1352, 1690, 1820, 1828, 2197, 2285, 2366, 3199, 3380, 3640, 3656, 4394, 4570, 4732, 5915, 5941, 6398, 6760, 8788, 9140, 9464, 10985, 11830, 11882, 12796, 15379, 15995, 17576, 18280, 21970, 23660, 23764, 25592, 29705, 30758, 31990, 41587, 43940, 47320, 47528, 59410, 61516, 63980, 76895, 77233, 83174, 87880, 118820, 123032, 127960, 153790, 154466, 166348, 207935, 237640, 307580, 308932, 332696, 386165, 415870, 540631, 615160, 617864, 772330, 831740, 1004029, 1081262, 1544660, 1663480, 2008058, 2162524, 2703155, 3089320, 4016116, 4325048, 5020145, 5406310, 7028203, 8032232, 10040290, 10812620, 14056406, 20080580, 21625240, 28112812, 35141015, 40161160, 56225624, 70282030, 140564060, 281128120]

約数ペア:

[(1, 281128120), (2, 140564060), (4, 70282030), (5, 56225624), (7, 40161160), (8, 35141015), (10, 28112812), (13, 21625240), (14, 20080580), (20, 14056406), (26, 10812620), (28, 10040290), (35, 8032232), (40, 7028203), (52, 5406310), (56, 5020145), (65, 4325048), (70, 4016116), (91, 3089320), (104, 2703155), (130, 2162524), (140, 2008058), (169, 1663480), (182, 1544660), (260, 1081262), (280, 1004029), (338, 831740), (364, 772330), (455, 617864), (457, 615160), (520, 540631), (676, 415870), (728, 386165), (845, 332696), (910, 308932), (914, 307580), (1183, 237640), (1352, 207935), (1690, 166348), (1820, 154466), (1828, 153790), (2197, 127960), (2285, 123032), (2366, 118820), (3199, 87880), (3380, 83174), (3640, 77233), (3656, 76895), (4394, 63980), (4570, 61516), (4732, 59410), (5915, 47528), (5941, 47320), (6398, 43940), (6760, 41587), (8788, 31990), (9140, 30758), (9464, 29705), (10985, 25592), (11830, 23764), (11882, 23660), (12796, 21970), (15379, 18280), (15995, 17576)]