31063240

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1$

素因数の和:143

約数の個数: 128

約数和(自身を含む): 81285120

約数和(自身を除く): 50221880

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 31, 40, 41, 47, 52, 62, 65, 82, 94, 104, 124, 130, 155, 164, 188, 205, 235, 248, 260, 310, 328, 376, 403, 410, 470, 520, 533, 611, 620, 806, 820, 940, 1066, 1222, 1240, 1271, 1457, 1612, 1640, 1880, 1927, 2015, 2132, 2444, 2542, 2665, 2914, 3055, 3224, 3854, 4030, 4264, 4888, 5084, 5330, 5828, 6110, 6355, 7285, 7708, 8060, 9635, 10168, 10660, 11656, 12220, 12710, 14570, 15416, 16120, 16523, 18941, 19270, 21320, 24440, 25051, 25420, 29140, 33046, 37882, 38540, 50102, 50840, 58280, 59737, 66092, 75764, 77080, 82615, 94705, 100204, 119474, 125255, 132184, 151528, 165230, 189410, 200408, 238948, 250510, 298685, 330460, 378820, 477896, 501020, 597370, 660920, 757640, 776581, 1002040, 1194740, 1553162, 2389480, 3106324, 3882905, 6212648, 7765810, 15531620, 31063240]

約数ペア:

[(1, 31063240), (2, 15531620), (4, 7765810), (5, 6212648), (8, 3882905), (10, 3106324), (13, 2389480), (20, 1553162), (26, 1194740), (31, 1002040), (40, 776581), (41, 757640), (47, 660920), (52, 597370), (62, 501020), (65, 477896), (82, 378820), (94, 330460), (104, 298685), (124, 250510), (130, 238948), (155, 200408), (164, 189410), (188, 165230), (205, 151528), (235, 132184), (248, 125255), (260, 119474), (310, 100204), (328, 94705), (376, 82615), (403, 77080), (410, 75764), (470, 66092), (520, 59737), (533, 58280), (611, 50840), (620, 50102), (806, 38540), (820, 37882), (940, 33046), (1066, 29140), (1222, 25420), (1240, 25051), (1271, 24440), (1457, 21320), (1612, 19270), (1640, 18941), (1880, 16523), (1927, 16120), (2015, 15416), (2132, 14570), (2444, 12710), (2542, 12220), (2665, 11656), (2914, 10660), (3055, 10168), (3224, 9635), (3854, 8060), (4030, 7708), (4264, 7285), (4888, 6355), (5084, 6110), (5330, 5828)]