20787552

素因数分解:

$2^5\times 3^2\times {\mathrm{89}}^1\times {\mathrm{811}}^1$

素因数の和:916

約数の個数: 72

約数和(自身を含む): 59852520

約数和(自身を除く): 39064968

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 89, 96, 144, 178, 267, 288, 356, 534, 712, 801, 811, 1068, 1424, 1602, 1622, 2136, 2433, 2848, 3204, 3244, 4272, 4866, 6408, 6488, 7299, 8544, 9732, 12816, 12976, 14598, 19464, 25632, 25952, 29196, 38928, 58392, 72179, 77856, 116784, 144358, 216537, 233568, 288716, 433074, 577432, 649611, 866148, 1154864, 1299222, 1732296, 2309728, 2598444, 3464592, 5196888, 6929184, 10393776, 20787552]

約数ペア:

[(1, 20787552), (2, 10393776), (3, 6929184), (4, 5196888), (6, 3464592), (8, 2598444), (9, 2309728), (12, 1732296), (16, 1299222), (18, 1154864), (24, 866148), (32, 649611), (36, 577432), (48, 433074), (72, 288716), (89, 233568), (96, 216537), (144, 144358), (178, 116784), (267, 77856), (288, 72179), (356, 58392), (534, 38928), (712, 29196), (801, 25952), (811, 25632), (1068, 19464), (1424, 14598), (1602, 12976), (1622, 12816), (2136, 9732), (2433, 8544), (2848, 7299), (3204, 6488), (3244, 6408), (4272, 4866)]