256385490

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{117071}}^1$

素因数の和:117154

約数の個数: 32

約数和(自身を含む): 623759616

約数和(自身を除く): 367374126

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 73, 146, 219, 365, 438, 730, 1095, 2190, 117071, 234142, 351213, 585355, 702426, 1170710, 1756065, 3512130, 8546183, 17092366, 25638549, 42730915, 51277098, 85461830, 128192745, 256385490]

約数ペア:

[(1, 256385490), (2, 128192745), (3, 85461830), (5, 51277098), (6, 42730915), (10, 25638549), (15, 17092366), (30, 8546183), (73, 3512130), (146, 1756065), (219, 1170710), (365, 702426), (438, 585355), (730, 351213), (1095, 234142), (2190, 117071)]