31439880

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{677}}^1$

素因数の和:740

約数の個数: 128

約数和(自身を含む): 107395200

約数和(自身を除く): 75955320

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 43, 45, 54, 60, 72, 86, 90, 108, 120, 129, 135, 172, 180, 215, 216, 258, 270, 344, 360, 387, 430, 516, 540, 645, 677, 774, 860, 1032, 1080, 1161, 1290, 1354, 1548, 1720, 1935, 2031, 2322, 2580, 2708, 3096, 3385, 3870, 4062, 4644, 5160, 5416, 5805, 6093, 6770, 7740, 8124, 9288, 10155, 11610, 12186, 13540, 15480, 16248, 18279, 20310, 23220, 24372, 27080, 29111, 30465, 36558, 40620, 46440, 48744, 58222, 60930, 73116, 81240, 87333, 91395, 116444, 121860, 145555, 146232, 174666, 182790, 232888, 243720, 261999, 291110, 349332, 365580, 436665, 523998, 582220, 698664, 731160, 785997, 873330, 1047996, 1164440, 1309995, 1571994, 1746660, 2095992, 2619990, 3143988, 3493320, 3929985, 5239980, 6287976, 7859970, 10479960, 15719940, 31439880]

約数ペア:

[(1, 31439880), (2, 15719940), (3, 10479960), (4, 7859970), (5, 6287976), (6, 5239980), (8, 3929985), (9, 3493320), (10, 3143988), (12, 2619990), (15, 2095992), (18, 1746660), (20, 1571994), (24, 1309995), (27, 1164440), (30, 1047996), (36, 873330), (40, 785997), (43, 731160), (45, 698664), (54, 582220), (60, 523998), (72, 436665), (86, 365580), (90, 349332), (108, 291110), (120, 261999), (129, 243720), (135, 232888), (172, 182790), (180, 174666), (215, 146232), (216, 145555), (258, 121860), (270, 116444), (344, 91395), (360, 87333), (387, 81240), (430, 73116), (516, 60930), (540, 58222), (645, 48744), (677, 46440), (774, 40620), (860, 36558), (1032, 30465), (1080, 29111), (1161, 27080), (1290, 24372), (1354, 23220), (1548, 20310), (1720, 18279), (1935, 16248), (2031, 15480), (2322, 13540), (2580, 12186), (2708, 11610), (3096, 10155), (3385, 9288), (3870, 8124), (4062, 7740), (4644, 6770), (5160, 6093), (5416, 5805)]