20702008960

素因数分解:

$2^7\times 5^1\times {\mathrm{1669}}^1\times {\mathrm{19381}}^1$

素因数の和:21069

約数の個数: 64

約数和(自身を含む): 49522948200

約数和(自身を除く): 28820939240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 1669, 3338, 6676, 8345, 13352, 16690, 19381, 26704, 33380, 38762, 53408, 66760, 77524, 96905, 106816, 133520, 155048, 193810, 213632, 267040, 310096, 387620, 534080, 620192, 775240, 1068160, 1240384, 1550480, 2480768, 3100960, 6201920, 12403840, 32346889, 64693778, 129387556, 161734445, 258775112, 323468890, 517550224, 646937780, 1035100448, 1293875560, 2070200896, 2587751120, 4140401792, 5175502240, 10351004480, 20702008960]

約数ペア:

[(1, 20702008960), (2, 10351004480), (4, 5175502240), (5, 4140401792), (8, 2587751120), (10, 2070200896), (16, 1293875560), (20, 1035100448), (32, 646937780), (40, 517550224), (64, 323468890), (80, 258775112), (128, 161734445), (160, 129387556), (320, 64693778), (640, 32346889), (1669, 12403840), (3338, 6201920), (6676, 3100960), (8345, 2480768), (13352, 1550480), (16690, 1240384), (19381, 1068160), (26704, 775240), (33380, 620192), (38762, 534080), (53408, 387620), (66760, 310096), (77524, 267040), (96905, 213632), (106816, 193810), (133520, 155048)]