90570640

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{521}}^1$

素因数の和:628

約数の個数: 80

約数和(自身を含む): 220204656

約数和(自身を除く): 129634016

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 53, 80, 82, 106, 164, 205, 212, 265, 328, 410, 424, 521, 530, 656, 820, 848, 1042, 1060, 1640, 2084, 2120, 2173, 2605, 3280, 4168, 4240, 4346, 5210, 8336, 8692, 10420, 10865, 17384, 20840, 21361, 21730, 27613, 34768, 41680, 42722, 43460, 55226, 85444, 86920, 106805, 110452, 138065, 170888, 173840, 213610, 220904, 276130, 341776, 427220, 441808, 552260, 854440, 1104520, 1132133, 1708880, 2209040, 2264266, 4528532, 5660665, 9057064, 11321330, 18114128, 22642660, 45285320, 90570640]

約数ペア:

[(1, 90570640), (2, 45285320), (4, 22642660), (5, 18114128), (8, 11321330), (10, 9057064), (16, 5660665), (20, 4528532), (40, 2264266), (41, 2209040), (53, 1708880), (80, 1132133), (82, 1104520), (106, 854440), (164, 552260), (205, 441808), (212, 427220), (265, 341776), (328, 276130), (410, 220904), (424, 213610), (521, 173840), (530, 170888), (656, 138065), (820, 110452), (848, 106805), (1042, 86920), (1060, 85444), (1640, 55226), (2084, 43460), (2120, 42722), (2173, 41680), (2605, 34768), (3280, 27613), (4168, 21730), (4240, 21361), (4346, 20840), (5210, 17384), (8336, 10865), (8692, 10420)]