28007940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{181}}^1\times {\mathrm{2579}}^1$

素因数の和:2772

約数の個数: 48

約数和(自身を含む): 78886080

約数和(自身を除く): 50878140

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 181, 362, 543, 724, 905, 1086, 1810, 2172, 2579, 2715, 3620, 5158, 5430, 7737, 10316, 10860, 12895, 15474, 25790, 30948, 38685, 51580, 77370, 154740, 466799, 933598, 1400397, 1867196, 2333995, 2800794, 4667990, 5601588, 7001985, 9335980, 14003970, 28007940]

約数ペア:

[(1, 28007940), (2, 14003970), (3, 9335980), (4, 7001985), (5, 5601588), (6, 4667990), (10, 2800794), (12, 2333995), (15, 1867196), (20, 1400397), (30, 933598), (60, 466799), (181, 154740), (362, 77370), (543, 51580), (724, 38685), (905, 30948), (1086, 25790), (1810, 15474), (2172, 12895), (2579, 10860), (2715, 10316), (3620, 7737), (5158, 5430)]