28656040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{1931}}^1$

素因数の和:2002

約数の個数: 64

約数和(自身を含む): 75116160

約数和(自身を除く): 46460120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 53, 56, 70, 106, 140, 212, 265, 280, 371, 424, 530, 742, 1060, 1484, 1855, 1931, 2120, 2968, 3710, 3862, 7420, 7724, 9655, 13517, 14840, 15448, 19310, 27034, 38620, 54068, 67585, 77240, 102343, 108136, 135170, 204686, 270340, 409372, 511715, 540680, 716401, 818744, 1023430, 1432802, 2046860, 2865604, 3582005, 4093720, 5731208, 7164010, 14328020, 28656040]

約数ペア:

[(1, 28656040), (2, 14328020), (4, 7164010), (5, 5731208), (7, 4093720), (8, 3582005), (10, 2865604), (14, 2046860), (20, 1432802), (28, 1023430), (35, 818744), (40, 716401), (53, 540680), (56, 511715), (70, 409372), (106, 270340), (140, 204686), (212, 135170), (265, 108136), (280, 102343), (371, 77240), (424, 67585), (530, 54068), (742, 38620), (1060, 27034), (1484, 19310), (1855, 15448), (1931, 14840), (2120, 13517), (2968, 9655), (3710, 7724), (3862, 7420)]