290439080

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{409}}^1\times {\mathrm{433}}^1$

素因数の和:894

約数の個数: 64

約数和(自身を含む): 672613200

約数和(自身を除く): 382174120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 409, 410, 433, 818, 820, 866, 1636, 1640, 1732, 2045, 2165, 3272, 3464, 4090, 4330, 8180, 8660, 16360, 16769, 17320, 17753, 33538, 35506, 67076, 71012, 83845, 88765, 134152, 142024, 167690, 177097, 177530, 335380, 354194, 355060, 670760, 708388, 710120, 885485, 1416776, 1770970, 3541940, 7083880, 7260977, 14521954, 29043908, 36304885, 58087816, 72609770, 145219540, 290439080]

約数ペア:

[(1, 290439080), (2, 145219540), (4, 72609770), (5, 58087816), (8, 36304885), (10, 29043908), (20, 14521954), (40, 7260977), (41, 7083880), (82, 3541940), (164, 1770970), (205, 1416776), (328, 885485), (409, 710120), (410, 708388), (433, 670760), (818, 355060), (820, 354194), (866, 335380), (1636, 177530), (1640, 177097), (1732, 167690), (2045, 142024), (2165, 134152), (3272, 88765), (3464, 83845), (4090, 71012), (4330, 67076), (8180, 35506), (8660, 33538), (16360, 17753), (16769, 17320)]