72480680

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{179}}^1\times {\mathrm{191}}^1$

素因数の和:434

約数の個数: 64

約数和(自身を含む): 167961600

約数和(自身を除く): 95480920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 179, 191, 212, 265, 358, 382, 424, 530, 716, 764, 895, 955, 1060, 1432, 1528, 1790, 1910, 2120, 3580, 3820, 7160, 7640, 9487, 10123, 18974, 20246, 34189, 37948, 40492, 47435, 50615, 68378, 75896, 80984, 94870, 101230, 136756, 170945, 189740, 202460, 273512, 341890, 379480, 404920, 683780, 1367560, 1812017, 3624034, 7248068, 9060085, 14496136, 18120170, 36240340, 72480680]

約数ペア:

[(1, 72480680), (2, 36240340), (4, 18120170), (5, 14496136), (8, 9060085), (10, 7248068), (20, 3624034), (40, 1812017), (53, 1367560), (106, 683780), (179, 404920), (191, 379480), (212, 341890), (265, 273512), (358, 202460), (382, 189740), (424, 170945), (530, 136756), (716, 101230), (764, 94870), (895, 80984), (955, 75896), (1060, 68378), (1432, 50615), (1528, 47435), (1790, 40492), (1910, 37948), (2120, 34189), (3580, 20246), (3820, 18974), (7160, 10123), (7640, 9487)]