31388120

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{1489}}^1$

素因数の和:1548

約数の個数: 64

約数和(自身を含む): 77241600

約数和(自身を除く): 45853480

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 31, 34, 40, 62, 68, 85, 124, 136, 155, 170, 248, 310, 340, 527, 620, 680, 1054, 1240, 1489, 2108, 2635, 2978, 4216, 5270, 5956, 7445, 10540, 11912, 14890, 21080, 25313, 29780, 46159, 50626, 59560, 92318, 101252, 126565, 184636, 202504, 230795, 253130, 369272, 461590, 506260, 784703, 923180, 1012520, 1569406, 1846360, 3138812, 3923515, 6277624, 7847030, 15694060, 31388120]

約数ペア:

[(1, 31388120), (2, 15694060), (4, 7847030), (5, 6277624), (8, 3923515), (10, 3138812), (17, 1846360), (20, 1569406), (31, 1012520), (34, 923180), (40, 784703), (62, 506260), (68, 461590), (85, 369272), (124, 253130), (136, 230795), (155, 202504), (170, 184636), (248, 126565), (310, 101252), (340, 92318), (527, 59560), (620, 50626), (680, 46159), (1054, 29780), (1240, 25313), (1489, 21080), (2108, 14890), (2635, 11912), (2978, 10540), (4216, 7445), (5270, 5956)]