31555680

素因数分解:

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

素因数の和:433

約数の個数: 144

約数和(自身を含む): 107911440

約数和(自身を除く): 76355760

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 32, 39, 40, 48, 52, 60, 65, 78, 80, 96, 104, 120, 130, 156, 160, 169, 195, 208, 240, 260, 312, 338, 389, 390, 416, 480, 507, 520, 624, 676, 778, 780, 845, 1014, 1040, 1167, 1248, 1352, 1556, 1560, 1690, 1945, 2028, 2080, 2334, 2535, 2704, 3112, 3120, 3380, 3890, 4056, 4668, 5057, 5070, 5408, 5835, 6224, 6240, 6760, 7780, 8112, 9336, 10114, 10140, 11670, 12448, 13520, 15171, 15560, 16224, 18672, 20228, 20280, 23340, 25285, 27040, 30342, 31120, 37344, 40456, 40560, 46680, 50570, 60684, 62240, 65741, 75855, 80912, 81120, 93360, 101140, 121368, 131482, 151710, 161824, 186720, 197223, 202280, 242736, 262964, 303420, 328705, 394446, 404560, 485472, 525928, 606840, 657410, 788892, 809120, 986115, 1051856, 1213680, 1314820, 1577784, 1972230, 2103712, 2427360, 2629640, 3155568, 3944460, 5259280, 6311136, 7888920, 10518560, 15777840, 31555680]

約数ペア:

[(1, 31555680), (2, 15777840), (3, 10518560), (4, 7888920), (5, 6311136), (6, 5259280), (8, 3944460), (10, 3155568), (12, 2629640), (13, 2427360), (15, 2103712), (16, 1972230), (20, 1577784), (24, 1314820), (26, 1213680), (30, 1051856), (32, 986115), (39, 809120), (40, 788892), (48, 657410), (52, 606840), (60, 525928), (65, 485472), (78, 404560), (80, 394446), (96, 328705), (104, 303420), (120, 262964), (130, 242736), (156, 202280), (160, 197223), (169, 186720), (195, 161824), (208, 151710), (240, 131482), (260, 121368), (312, 101140), (338, 93360), (389, 81120), (390, 80912), (416, 75855), (480, 65741), (507, 62240), (520, 60684), (624, 50570), (676, 46680), (778, 40560), (780, 40456), (845, 37344), (1014, 31120), (1040, 30342), (1167, 27040), (1248, 25285), (1352, 23340), (1556, 20280), (1560, 20228), (1690, 18672), (1945, 16224), (2028, 15560), (2080, 15171), (2334, 13520), (2535, 12448), (2704, 11670), (3112, 10140), (3120, 10114), (3380, 9336), (3890, 8112), (4056, 7780), (4668, 6760), (5057, 6240), (5070, 6224), (5408, 5835)]