2021076980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{439}}^1\times {\mathrm{17707}}^1$

素因数の和:18168

約数の個数: 48

約数和(自身を含む): 4581413760

約数和(自身を除く): 2560336780

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 439, 878, 1756, 2195, 4390, 5707, 8780, 11414, 17707, 22828, 28535, 35414, 57070, 70828, 88535, 114140, 177070, 230191, 354140, 460382, 920764, 1150955, 2301910, 4603820, 7773373, 15546746, 31093492, 38866865, 77733730, 101053849, 155467460, 202107698, 404215396, 505269245, 1010538490, 2021076980]

約数ペア:

[(1, 2021076980), (2, 1010538490), (4, 505269245), (5, 404215396), (10, 202107698), (13, 155467460), (20, 101053849), (26, 77733730), (52, 38866865), (65, 31093492), (130, 15546746), (260, 7773373), (439, 4603820), (878, 2301910), (1756, 1150955), (2195, 920764), (4390, 460382), (5707, 354140), (8780, 230191), (11414, 177070), (17707, 114140), (22828, 88535), (28535, 70828), (35414, 57070)]