28317420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{2579}}^1$

素因数の和:2655

約数の個数: 72

約数和(自身を含む): 87338160

約数和(自身を除く): 59020740

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 61, 90, 122, 180, 183, 244, 305, 366, 549, 610, 732, 915, 1098, 1220, 1830, 2196, 2579, 2745, 3660, 5158, 5490, 7737, 10316, 10980, 12895, 15474, 23211, 25790, 30948, 38685, 46422, 51580, 77370, 92844, 116055, 154740, 157319, 232110, 314638, 464220, 471957, 629276, 786595, 943914, 1415871, 1573190, 1887828, 2359785, 2831742, 3146380, 4719570, 5663484, 7079355, 9439140, 14158710, 28317420]

約数ペア:

[(1, 28317420), (2, 14158710), (3, 9439140), (4, 7079355), (5, 5663484), (6, 4719570), (9, 3146380), (10, 2831742), (12, 2359785), (15, 1887828), (18, 1573190), (20, 1415871), (30, 943914), (36, 786595), (45, 629276), (60, 471957), (61, 464220), (90, 314638), (122, 232110), (180, 157319), (183, 154740), (244, 116055), (305, 92844), (366, 77370), (549, 51580), (610, 46422), (732, 38685), (915, 30948), (1098, 25790), (1220, 23211), (1830, 15474), (2196, 12895), (2579, 10980), (2745, 10316), (3660, 7737), (5158, 5490)]