648780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{983}}^1$

素因数の和:1006

約数の個数: 48

約数和(自身を含む): 1983744

約数和(自身を除く): 1334964

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 132, 165, 220, 330, 660, 983, 1966, 2949, 3932, 4915, 5898, 9830, 10813, 11796, 14745, 19660, 21626, 29490, 32439, 43252, 54065, 58980, 64878, 108130, 129756, 162195, 216260, 324390, 648780]

約数ペア:

[(1, 648780), (2, 324390), (3, 216260), (4, 162195), (5, 129756), (6, 108130), (10, 64878), (11, 58980), (12, 54065), (15, 43252), (20, 32439), (22, 29490), (30, 21626), (33, 19660), (44, 14745), (55, 11796), (60, 10813), (66, 9830), (110, 5898), (132, 4915), (165, 3932), (220, 2949), (330, 1966), (660, 983)]