21602680

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{1693}}^1$

素因数の和:1744

約数の個数: 64

約数和(自身を含む): 54885600

約数和(自身を除く): 33282920

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 29, 40, 44, 55, 58, 88, 110, 116, 145, 220, 232, 290, 319, 440, 580, 638, 1160, 1276, 1595, 1693, 2552, 3190, 3386, 6380, 6772, 8465, 12760, 13544, 16930, 18623, 33860, 37246, 49097, 67720, 74492, 93115, 98194, 148984, 186230, 196388, 245485, 372460, 392776, 490970, 540067, 744920, 981940, 1080134, 1963880, 2160268, 2700335, 4320536, 5400670, 10801340, 21602680]

約数ペア:

[(1, 21602680), (2, 10801340), (4, 5400670), (5, 4320536), (8, 2700335), (10, 2160268), (11, 1963880), (20, 1080134), (22, 981940), (29, 744920), (40, 540067), (44, 490970), (55, 392776), (58, 372460), (88, 245485), (110, 196388), (116, 186230), (145, 148984), (220, 98194), (232, 93115), (290, 74492), (319, 67720), (440, 49097), (580, 37246), (638, 33860), (1160, 18623), (1276, 16930), (1595, 13544), (1693, 12760), (2552, 8465), (3190, 6772), (3386, 6380)]