1389695360

素因数分解:

$2^7\times 5^1\times {\mathrm{101}}^1\times {\mathrm{21499}}^1$

素因数の和:21619

約数の個数: 64

約数和(自身を含む): 3355290000

約数和(自身を除く): 1965594640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 101, 128, 160, 202, 320, 404, 505, 640, 808, 1010, 1616, 2020, 3232, 4040, 6464, 8080, 12928, 16160, 21499, 32320, 42998, 64640, 85996, 107495, 171992, 214990, 343984, 429980, 687968, 859960, 1375936, 1719920, 2171399, 2751872, 3439840, 4342798, 6879680, 8685596, 10856995, 13759360, 17371192, 21713990, 34742384, 43427980, 69484768, 86855960, 138969536, 173711920, 277939072, 347423840, 694847680, 1389695360]

約数ペア:

[(1, 1389695360), (2, 694847680), (4, 347423840), (5, 277939072), (8, 173711920), (10, 138969536), (16, 86855960), (20, 69484768), (32, 43427980), (40, 34742384), (64, 21713990), (80, 17371192), (101, 13759360), (128, 10856995), (160, 8685596), (202, 6879680), (320, 4342798), (404, 3439840), (505, 2751872), (640, 2171399), (808, 1719920), (1010, 1375936), (1616, 859960), (2020, 687968), (3232, 429980), (4040, 343984), (6464, 214990), (8080, 171992), (12928, 107495), (16160, 85996), (21499, 64640), (32320, 42998)]