9821960

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{113}}^1$

素因数の和:218

約数の個数: 64

約数和(自身を含む): 23269680

約数和(自身を除く): 13447720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 53, 82, 106, 113, 164, 205, 212, 226, 265, 328, 410, 424, 452, 530, 565, 820, 904, 1060, 1130, 1640, 2120, 2173, 2260, 4346, 4520, 4633, 5989, 8692, 9266, 10865, 11978, 17384, 18532, 21730, 23165, 23956, 29945, 37064, 43460, 46330, 47912, 59890, 86920, 92660, 119780, 185320, 239560, 245549, 491098, 982196, 1227745, 1964392, 2455490, 4910980, 9821960]

約数ペア:

[(1, 9821960), (2, 4910980), (4, 2455490), (5, 1964392), (8, 1227745), (10, 982196), (20, 491098), (40, 245549), (41, 239560), (53, 185320), (82, 119780), (106, 92660), (113, 86920), (164, 59890), (205, 47912), (212, 46330), (226, 43460), (265, 37064), (328, 29945), (410, 23956), (424, 23165), (452, 21730), (530, 18532), (565, 17384), (820, 11978), (904, 10865), (1060, 9266), (1130, 8692), (1640, 5989), (2120, 4633), (2173, 4520), (2260, 4346)]