277776140

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{199}}^1\times {\mathrm{983}}^1$

素因数の和:1262

約数の個数: 48

約数和(自身を含む): 595123200

約数和(自身を除く): 317347060

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 199, 284, 355, 398, 710, 796, 983, 995, 1420, 1966, 1990, 3932, 3980, 4915, 9830, 14129, 19660, 28258, 56516, 69793, 70645, 139586, 141290, 195617, 279172, 282580, 348965, 391234, 697930, 782468, 978085, 1395860, 1956170, 3912340, 13888807, 27777614, 55555228, 69444035, 138888070, 277776140]

約数ペア:

[(1, 277776140), (2, 138888070), (4, 69444035), (5, 55555228), (10, 27777614), (20, 13888807), (71, 3912340), (142, 1956170), (199, 1395860), (284, 978085), (355, 782468), (398, 697930), (710, 391234), (796, 348965), (983, 282580), (995, 279172), (1420, 195617), (1966, 141290), (1990, 139586), (3932, 70645), (3980, 69793), (4915, 56516), (9830, 28258), (14129, 19660)]