84401960

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{113}}^1\times {\mathrm{263}}^1$

素因数の和:458

約数の個数: 64

約数和(自身を含む): 195022080

約数和(自身を除く): 110620120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 113, 142, 226, 263, 284, 355, 452, 526, 565, 568, 710, 904, 1052, 1130, 1315, 1420, 2104, 2260, 2630, 2840, 4520, 5260, 8023, 10520, 16046, 18673, 29719, 32092, 37346, 40115, 59438, 64184, 74692, 80230, 93365, 118876, 148595, 149384, 160460, 186730, 237752, 297190, 320920, 373460, 594380, 746920, 1188760, 2110049, 4220098, 8440196, 10550245, 16880392, 21100490, 42200980, 84401960]

約数ペア:

[(1, 84401960), (2, 42200980), (4, 21100490), (5, 16880392), (8, 10550245), (10, 8440196), (20, 4220098), (40, 2110049), (71, 1188760), (113, 746920), (142, 594380), (226, 373460), (263, 320920), (284, 297190), (355, 237752), (452, 186730), (526, 160460), (565, 149384), (568, 148595), (710, 118876), (904, 93365), (1052, 80230), (1130, 74692), (1315, 64184), (1420, 59438), (2104, 40115), (2260, 37346), (2630, 32092), (2840, 29719), (4520, 18673), (5260, 16046), (8023, 10520)]