397401366980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1399}}^1\times {\mathrm{747529}}^1$

素因数の和:748956

約数の個数: 48

約数和(自身を含む): 879095280000

約数和(自身を除く): 481693913020

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 1399, 2798, 5596, 6995, 13990, 26581, 27980, 53162, 106324, 132905, 265810, 531620, 747529, 1495058, 2990116, 3737645, 7475290, 14203051, 14950580, 28406102, 56812204, 71015255, 142030510, 284061020, 1045793071, 2091586142, 4183172284, 5228965355, 10457930710, 19870068349, 20915861420, 39740136698, 79480273396, 99350341745, 198700683490, 397401366980]

約数ペア:

[(1, 397401366980), (2, 198700683490), (4, 99350341745), (5, 79480273396), (10, 39740136698), (19, 20915861420), (20, 19870068349), (38, 10457930710), (76, 5228965355), (95, 4183172284), (190, 2091586142), (380, 1045793071), (1399, 284061020), (2798, 142030510), (5596, 71015255), (6995, 56812204), (13990, 28406102), (26581, 14950580), (27980, 14203051), (53162, 7475290), (106324, 3737645), (132905, 2990116), (265810, 1495058), (531620, 747529)]