31183180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{617}}^1$

素因数の和:671

約数の個数: 72

約数和(自身を含む): 79113888

約数和(自身を除く): 47930708

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 70, 76, 95, 133, 140, 190, 266, 361, 380, 532, 617, 665, 722, 1234, 1330, 1444, 1805, 2468, 2527, 2660, 3085, 3610, 4319, 5054, 6170, 7220, 8638, 10108, 11723, 12340, 12635, 17276, 21595, 23446, 25270, 43190, 46892, 50540, 58615, 82061, 86380, 117230, 164122, 222737, 234460, 328244, 410305, 445474, 820610, 890948, 1113685, 1559159, 1641220, 2227370, 3118318, 4454740, 6236636, 7795795, 15591590, 31183180]

約数ペア:

[(1, 31183180), (2, 15591590), (4, 7795795), (5, 6236636), (7, 4454740), (10, 3118318), (14, 2227370), (19, 1641220), (20, 1559159), (28, 1113685), (35, 890948), (38, 820610), (70, 445474), (76, 410305), (95, 328244), (133, 234460), (140, 222737), (190, 164122), (266, 117230), (361, 86380), (380, 82061), (532, 58615), (617, 50540), (665, 46892), (722, 43190), (1234, 25270), (1330, 23446), (1444, 21595), (1805, 17276), (2468, 12635), (2527, 12340), (2660, 11723), (3085, 10108), (3610, 8638), (4319, 7220), (5054, 6170)]