20342952520

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{476639}}^1$

素因数の和:476758

約数の個数: 64

約数和(自身を含む): 50447577600

約数和(自身を除く): 30104625080

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 97, 110, 194, 220, 388, 440, 485, 776, 970, 1067, 1940, 2134, 3880, 4268, 5335, 8536, 10670, 21340, 42680, 476639, 953278, 1906556, 2383195, 3813112, 4766390, 5243029, 9532780, 10486058, 19065560, 20972116, 26215145, 41944232, 46233983, 52430290, 92467966, 104860580, 184935932, 209721160, 231169915, 369871864, 462339830, 508573813, 924679660, 1017147626, 1849359320, 2034295252, 2542869065, 4068590504, 5085738130, 10171476260, 20342952520]

約数ペア:

[(1, 20342952520), (2, 10171476260), (4, 5085738130), (5, 4068590504), (8, 2542869065), (10, 2034295252), (11, 1849359320), (20, 1017147626), (22, 924679660), (40, 508573813), (44, 462339830), (55, 369871864), (88, 231169915), (97, 209721160), (110, 184935932), (194, 104860580), (220, 92467966), (388, 52430290), (440, 46233983), (485, 41944232), (776, 26215145), (970, 20972116), (1067, 19065560), (1940, 10486058), (2134, 9532780), (3880, 5243029), (4268, 4766390), (5335, 3813112), (8536, 2383195), (10670, 1906556), (21340, 953278), (42680, 476639)]