26539880

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{73}}^1\times {\mathrm{149}}^1$

素因数の和:294

約数の個数: 64

約数和(自身を含む): 61938000

約数和(自身を除く): 35398120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 73, 122, 146, 149, 244, 292, 298, 305, 365, 488, 584, 596, 610, 730, 745, 1192, 1220, 1460, 1490, 2440, 2920, 2980, 4453, 5960, 8906, 9089, 10877, 17812, 18178, 21754, 22265, 35624, 36356, 43508, 44530, 45445, 54385, 72712, 87016, 89060, 90890, 108770, 178120, 181780, 217540, 363560, 435080, 663497, 1326994, 2653988, 3317485, 5307976, 6634970, 13269940, 26539880]

約数ペア:

[(1, 26539880), (2, 13269940), (4, 6634970), (5, 5307976), (8, 3317485), (10, 2653988), (20, 1326994), (40, 663497), (61, 435080), (73, 363560), (122, 217540), (146, 181780), (149, 178120), (244, 108770), (292, 90890), (298, 89060), (305, 87016), (365, 72712), (488, 54385), (584, 45445), (596, 44530), (610, 43508), (730, 36356), (745, 35624), (1192, 22265), (1220, 21754), (1460, 18178), (1490, 17812), (2440, 10877), (2920, 9089), (2980, 8906), (4453, 5960)]