2018302120

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{26683}}^1$

素因数の和:26786

約数の個数: 64

約数和(自身を含む): 4764695040

約数和(自身を除く): 2746392920

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 61, 62, 122, 124, 155, 244, 248, 305, 310, 488, 610, 620, 1220, 1240, 1891, 2440, 3782, 7564, 9455, 15128, 18910, 26683, 37820, 53366, 75640, 106732, 133415, 213464, 266830, 533660, 827173, 1067320, 1627663, 1654346, 3255326, 3308692, 4135865, 6510652, 6617384, 8138315, 8271730, 13021304, 16276630, 16543460, 32553260, 33086920, 50457553, 65106520, 100915106, 201830212, 252287765, 403660424, 504575530, 1009151060, 2018302120]

約数ペア:

[(1, 2018302120), (2, 1009151060), (4, 504575530), (5, 403660424), (8, 252287765), (10, 201830212), (20, 100915106), (31, 65106520), (40, 50457553), (61, 33086920), (62, 32553260), (122, 16543460), (124, 16276630), (155, 13021304), (244, 8271730), (248, 8138315), (305, 6617384), (310, 6510652), (488, 4135865), (610, 3308692), (620, 3255326), (1220, 1654346), (1240, 1627663), (1891, 1067320), (2440, 827173), (3782, 533660), (7564, 266830), (9455, 213464), (15128, 133415), (18910, 106732), (26683, 75640), (37820, 53366)]