1279520760

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{257}}^1\times {\mathrm{5927}}^1$

素因数の和:6205

約数の個数: 128

約数和(自身を含む): 4404741120

約数和(自身を除く): 3125220360

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 257, 280, 420, 514, 771, 840, 1028, 1285, 1542, 1799, 2056, 2570, 3084, 3598, 3855, 5140, 5397, 5927, 6168, 7196, 7710, 8995, 10280, 10794, 11854, 14392, 15420, 17781, 17990, 21588, 23708, 26985, 29635, 30840, 35562, 35980, 41489, 43176, 47416, 53970, 59270, 71124, 71960, 82978, 88905, 107940, 118540, 124467, 142248, 165956, 177810, 207445, 215880, 237080, 248934, 331912, 355620, 414890, 497868, 622335, 711240, 829780, 995736, 1244670, 1523239, 1659560, 2489340, 3046478, 4569717, 4978680, 6092956, 7616195, 9139434, 10662673, 12185912, 15232390, 18278868, 21325346, 22848585, 30464780, 31988019, 36557736, 42650692, 45697170, 53313365, 60929560, 63976038, 85301384, 91394340, 106626730, 127952076, 159940095, 182788680, 213253460, 255904152, 319880190, 426506920, 639760380, 1279520760]

約数ペア:

[(1, 1279520760), (2, 639760380), (3, 426506920), (4, 319880190), (5, 255904152), (6, 213253460), (7, 182788680), (8, 159940095), (10, 127952076), (12, 106626730), (14, 91394340), (15, 85301384), (20, 63976038), (21, 60929560), (24, 53313365), (28, 45697170), (30, 42650692), (35, 36557736), (40, 31988019), (42, 30464780), (56, 22848585), (60, 21325346), (70, 18278868), (84, 15232390), (105, 12185912), (120, 10662673), (140, 9139434), (168, 7616195), (210, 6092956), (257, 4978680), (280, 4569717), (420, 3046478), (514, 2489340), (771, 1659560), (840, 1523239), (1028, 1244670), (1285, 995736), (1542, 829780), (1799, 711240), (2056, 622335), (2570, 497868), (3084, 414890), (3598, 355620), (3855, 331912), (5140, 248934), (5397, 237080), (5927, 215880), (6168, 207445), (7196, 177810), (7710, 165956), (8995, 142248), (10280, 124467), (10794, 118540), (11854, 107940), (14392, 88905), (15420, 82978), (17781, 71960), (17990, 71124), (21588, 59270), (23708, 53970), (26985, 47416), (29635, 43176), (30840, 41489), (35562, 35980)]