128985160

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{163}}^1\times {\mathrm{271}}^1$

素因数の和:518

約数の個数: 64

約数和(自身を含む): 297089280

約数和(自身を除く): 168104120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 146, 163, 271, 292, 326, 365, 542, 584, 652, 730, 815, 1084, 1304, 1355, 1460, 1630, 2168, 2710, 2920, 3260, 5420, 6520, 10840, 11899, 19783, 23798, 39566, 44173, 47596, 59495, 79132, 88346, 95192, 98915, 118990, 158264, 176692, 197830, 220865, 237980, 353384, 395660, 441730, 475960, 791320, 883460, 1766920, 3224629, 6449258, 12898516, 16123145, 25797032, 32246290, 64492580, 128985160]

約数ペア:

[(1, 128985160), (2, 64492580), (4, 32246290), (5, 25797032), (8, 16123145), (10, 12898516), (20, 6449258), (40, 3224629), (73, 1766920), (146, 883460), (163, 791320), (271, 475960), (292, 441730), (326, 395660), (365, 353384), (542, 237980), (584, 220865), (652, 197830), (730, 176692), (815, 158264), (1084, 118990), (1304, 98915), (1355, 95192), (1460, 88346), (1630, 79132), (2168, 59495), (2710, 47596), (2920, 44173), (3260, 39566), (5420, 23798), (6520, 19783), (10840, 11899)]