15777840

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{389}}^1$

素因数の和:431

約数の個数: 120

約数和(自身を含む): 53099280

約数和(自身を除く): 37321440

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 65, 78, 80, 104, 120, 130, 156, 169, 195, 208, 240, 260, 312, 338, 389, 390, 507, 520, 624, 676, 778, 780, 845, 1014, 1040, 1167, 1352, 1556, 1560, 1690, 1945, 2028, 2334, 2535, 2704, 3112, 3120, 3380, 3890, 4056, 4668, 5057, 5070, 5835, 6224, 6760, 7780, 8112, 9336, 10114, 10140, 11670, 13520, 15171, 15560, 18672, 20228, 20280, 23340, 25285, 30342, 31120, 40456, 40560, 46680, 50570, 60684, 65741, 75855, 80912, 93360, 101140, 121368, 131482, 151710, 197223, 202280, 242736, 262964, 303420, 328705, 394446, 404560, 525928, 606840, 657410, 788892, 986115, 1051856, 1213680, 1314820, 1577784, 1972230, 2629640, 3155568, 3944460, 5259280, 7888920, 15777840]

約数ペア:

[(1, 15777840), (2, 7888920), (3, 5259280), (4, 3944460), (5, 3155568), (6, 2629640), (8, 1972230), (10, 1577784), (12, 1314820), (13, 1213680), (15, 1051856), (16, 986115), (20, 788892), (24, 657410), (26, 606840), (30, 525928), (39, 404560), (40, 394446), (48, 328705), (52, 303420), (60, 262964), (65, 242736), (78, 202280), (80, 197223), (104, 151710), (120, 131482), (130, 121368), (156, 101140), (169, 93360), (195, 80912), (208, 75855), (240, 65741), (260, 60684), (312, 50570), (338, 46680), (389, 40560), (390, 40456), (507, 31120), (520, 30342), (624, 25285), (676, 23340), (778, 20280), (780, 20228), (845, 18672), (1014, 15560), (1040, 15171), (1167, 13520), (1352, 11670), (1556, 10140), (1560, 10114), (1690, 9336), (1945, 8112), (2028, 7780), (2334, 6760), (2535, 6224), (2704, 5835), (3112, 5070), (3120, 5057), (3380, 4668), (3890, 4056)]