31509540

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1$

素因数の和:143

約数の個数: 192

約数和(自身を含む): 106444800

約数和(自身を除く): 74935260

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 27, 30, 36, 43, 45, 46, 54, 59, 60, 69, 86, 90, 92, 108, 115, 118, 129, 135, 138, 172, 177, 180, 207, 215, 230, 236, 258, 270, 276, 295, 345, 354, 387, 414, 430, 460, 516, 531, 540, 590, 621, 645, 690, 708, 774, 828, 860, 885, 989, 1035, 1062, 1161, 1180, 1242, 1290, 1357, 1380, 1548, 1593, 1770, 1935, 1978, 2070, 2124, 2322, 2484, 2537, 2580, 2655, 2714, 2967, 3105, 3186, 3540, 3870, 3956, 4071, 4140, 4644, 4945, 5074, 5310, 5428, 5805, 5934, 6210, 6372, 6785, 7611, 7740, 7965, 8142, 8901, 9890, 10148, 10620, 11610, 11868, 12213, 12420, 12685, 13570, 14835, 15222, 15930, 16284, 17802, 19780, 20355, 22833, 23220, 24426, 25370, 26703, 27140, 29670, 30444, 31860, 35604, 36639, 38055, 40710, 44505, 45666, 48852, 50740, 53406, 58351, 59340, 61065, 68499, 73278, 76110, 81420, 89010, 91332, 106812, 114165, 116702, 122130, 133515, 136998, 146556, 152220, 175053, 178020, 183195, 228330, 233404, 244260, 267030, 273996, 291755, 342495, 350106, 366390, 456660, 525159, 534060, 583510, 684990, 700212, 732780, 875265, 1050318, 1167020, 1369980, 1575477, 1750530, 2100636, 2625795, 3150954, 3501060, 5251590, 6301908, 7877385, 10503180, 15754770, 31509540]

約数ペア:

[(1, 31509540), (2, 15754770), (3, 10503180), (4, 7877385), (5, 6301908), (6, 5251590), (9, 3501060), (10, 3150954), (12, 2625795), (15, 2100636), (18, 1750530), (20, 1575477), (23, 1369980), (27, 1167020), (30, 1050318), (36, 875265), (43, 732780), (45, 700212), (46, 684990), (54, 583510), (59, 534060), (60, 525159), (69, 456660), (86, 366390), (90, 350106), (92, 342495), (108, 291755), (115, 273996), (118, 267030), (129, 244260), (135, 233404), (138, 228330), (172, 183195), (177, 178020), (180, 175053), (207, 152220), (215, 146556), (230, 136998), (236, 133515), (258, 122130), (270, 116702), (276, 114165), (295, 106812), (345, 91332), (354, 89010), (387, 81420), (414, 76110), (430, 73278), (460, 68499), (516, 61065), (531, 59340), (540, 58351), (590, 53406), (621, 50740), (645, 48852), (690, 45666), (708, 44505), (774, 40710), (828, 38055), (860, 36639), (885, 35604), (989, 31860), (1035, 30444), (1062, 29670), (1161, 27140), (1180, 26703), (1242, 25370), (1290, 24426), (1357, 23220), (1380, 22833), (1548, 20355), (1593, 19780), (1770, 17802), (1935, 16284), (1978, 15930), (2070, 15222), (2124, 14835), (2322, 13570), (2484, 12685), (2537, 12420), (2580, 12213), (2655, 11868), (2714, 11610), (2967, 10620), (3105, 10148), (3186, 9890), (3540, 8901), (3870, 8142), (3956, 7965), (4071, 7740), (4140, 7611), (4644, 6785), (4945, 6372), (5074, 6210), (5310, 5934), (5428, 5805)]