28408920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{3881}}^1$

素因数の和:3956

約数の個数: 64

約数和(自身を含む): 86646240

約数和(自身を除く): 58237320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 61, 120, 122, 183, 244, 305, 366, 488, 610, 732, 915, 1220, 1464, 1830, 2440, 3660, 3881, 7320, 7762, 11643, 15524, 19405, 23286, 31048, 38810, 46572, 58215, 77620, 93144, 116430, 155240, 232860, 236741, 465720, 473482, 710223, 946964, 1183705, 1420446, 1893928, 2367410, 2840892, 3551115, 4734820, 5681784, 7102230, 9469640, 14204460, 28408920]

約数ペア:

[(1, 28408920), (2, 14204460), (3, 9469640), (4, 7102230), (5, 5681784), (6, 4734820), (8, 3551115), (10, 2840892), (12, 2367410), (15, 1893928), (20, 1420446), (24, 1183705), (30, 946964), (40, 710223), (60, 473482), (61, 465720), (120, 236741), (122, 232860), (183, 155240), (244, 116430), (305, 93144), (366, 77620), (488, 58215), (610, 46572), (732, 38810), (915, 31048), (1220, 23286), (1464, 19405), (1830, 15524), (2440, 11643), (3660, 7762), (3881, 7320)]