2015102920

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{797}}^1\times {\mathrm{2039}}^1$

素因数の和:2878

約数の個数: 64

約数和(自身を含む): 4688409600

約数和(自身を除く): 2673306680

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 797, 1240, 1594, 2039, 3188, 3985, 4078, 6376, 7970, 8156, 10195, 15940, 16312, 20390, 24707, 31880, 40780, 49414, 63209, 81560, 98828, 123535, 126418, 197656, 247070, 252836, 316045, 494140, 505672, 632090, 988280, 1264180, 1625083, 2528360, 3250166, 6500332, 8125415, 13000664, 16250830, 32501660, 50377573, 65003320, 100755146, 201510292, 251887865, 403020584, 503775730, 1007551460, 2015102920]

約数ペア:

[(1, 2015102920), (2, 1007551460), (4, 503775730), (5, 403020584), (8, 251887865), (10, 201510292), (20, 100755146), (31, 65003320), (40, 50377573), (62, 32501660), (124, 16250830), (155, 13000664), (248, 8125415), (310, 6500332), (620, 3250166), (797, 2528360), (1240, 1625083), (1594, 1264180), (2039, 988280), (3188, 632090), (3985, 505672), (4078, 494140), (6376, 316045), (7970, 252836), (8156, 247070), (10195, 197656), (15940, 126418), (16312, 123535), (20390, 98828), (24707, 81560), (31880, 63209), (40780, 49414)]