64674640

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{457}}^1$

素因数の和:560

約数の個数: 80

約数和(自身を含む): 158449680

約数和(自身を除く): 93775040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 61, 80, 116, 122, 145, 232, 244, 290, 305, 457, 464, 488, 580, 610, 914, 976, 1160, 1220, 1769, 1828, 2285, 2320, 2440, 3538, 3656, 4570, 4880, 7076, 7312, 8845, 9140, 13253, 14152, 17690, 18280, 26506, 27877, 28304, 35380, 36560, 53012, 55754, 66265, 70760, 106024, 111508, 132530, 139385, 141520, 212048, 223016, 265060, 278770, 446032, 530120, 557540, 808433, 1060240, 1115080, 1616866, 2230160, 3233732, 4042165, 6467464, 8084330, 12934928, 16168660, 32337320, 64674640]

約数ペア:

[(1, 64674640), (2, 32337320), (4, 16168660), (5, 12934928), (8, 8084330), (10, 6467464), (16, 4042165), (20, 3233732), (29, 2230160), (40, 1616866), (58, 1115080), (61, 1060240), (80, 808433), (116, 557540), (122, 530120), (145, 446032), (232, 278770), (244, 265060), (290, 223016), (305, 212048), (457, 141520), (464, 139385), (488, 132530), (580, 111508), (610, 106024), (914, 70760), (976, 66265), (1160, 55754), (1220, 53012), (1769, 36560), (1828, 35380), (2285, 28304), (2320, 27877), (2440, 26506), (3538, 18280), (3656, 17690), (4570, 14152), (4880, 13253), (7076, 9140), (7312, 8845)]