20323560

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{257}}^1\times {\mathrm{659}}^1$

素因数の和:930

約数の個数: 64

約数和(自身を含む): 61300800

約数和(自身を除く): 40977240

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 257, 514, 659, 771, 1028, 1285, 1318, 1542, 1977, 2056, 2570, 2636, 3084, 3295, 3855, 3954, 5140, 5272, 6168, 6590, 7710, 7908, 9885, 10280, 13180, 15420, 15816, 19770, 26360, 30840, 39540, 79080, 169363, 338726, 508089, 677452, 846815, 1016178, 1354904, 1693630, 2032356, 2540445, 3387260, 4064712, 5080890, 6774520, 10161780, 20323560]

約数ペア:

[(1, 20323560), (2, 10161780), (3, 6774520), (4, 5080890), (5, 4064712), (6, 3387260), (8, 2540445), (10, 2032356), (12, 1693630), (15, 1354904), (20, 1016178), (24, 846815), (30, 677452), (40, 508089), (60, 338726), (120, 169363), (257, 79080), (514, 39540), (659, 30840), (771, 26360), (1028, 19770), (1285, 15816), (1318, 15420), (1542, 13180), (1977, 10280), (2056, 9885), (2570, 7908), (2636, 7710), (3084, 6590), (3295, 6168), (3855, 5272), (3954, 5140)]