2259920

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1$

素因数の和:120

約数の個数: 80

約数和(自身を含む): 5905872

約数和(自身を除く): 3645952

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 41, 52, 53, 65, 80, 82, 104, 106, 130, 164, 205, 208, 212, 260, 265, 328, 410, 424, 520, 530, 533, 656, 689, 820, 848, 1040, 1060, 1066, 1378, 1640, 2120, 2132, 2173, 2665, 2756, 3280, 3445, 4240, 4264, 4346, 5330, 5512, 6890, 8528, 8692, 10660, 10865, 11024, 13780, 17384, 21320, 21730, 27560, 28249, 34768, 42640, 43460, 55120, 56498, 86920, 112996, 141245, 173840, 225992, 282490, 451984, 564980, 1129960, 2259920]

約数ペア:

[(1, 2259920), (2, 1129960), (4, 564980), (5, 451984), (8, 282490), (10, 225992), (13, 173840), (16, 141245), (20, 112996), (26, 86920), (40, 56498), (41, 55120), (52, 43460), (53, 42640), (65, 34768), (80, 28249), (82, 27560), (104, 21730), (106, 21320), (130, 17384), (164, 13780), (205, 11024), (208, 10865), (212, 10660), (260, 8692), (265, 8528), (328, 6890), (410, 5512), (424, 5330), (520, 4346), (530, 4264), (533, 4240), (656, 3445), (689, 3280), (820, 2756), (848, 2665), (1040, 2173), (1060, 2132), (1066, 2120), (1378, 1640)]