20895264

素因数分解:

$2^5\times 3^2\times {\mathrm{13}}^1\times {\mathrm{5581}}^1$

素因数の和:5610

約数の個数: 72

約数和(自身を含む): 64003212

約数和(自身を除く): 43107948

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 32, 36, 39, 48, 52, 72, 78, 96, 104, 117, 144, 156, 208, 234, 288, 312, 416, 468, 624, 936, 1248, 1872, 3744, 5581, 11162, 16743, 22324, 33486, 44648, 50229, 66972, 72553, 89296, 100458, 133944, 145106, 178592, 200916, 217659, 267888, 290212, 401832, 435318, 535776, 580424, 652977, 803664, 870636, 1160848, 1305954, 1607328, 1741272, 2321696, 2611908, 3482544, 5223816, 6965088, 10447632, 20895264]

約数ペア:

[(1, 20895264), (2, 10447632), (3, 6965088), (4, 5223816), (6, 3482544), (8, 2611908), (9, 2321696), (12, 1741272), (13, 1607328), (16, 1305954), (18, 1160848), (24, 870636), (26, 803664), (32, 652977), (36, 580424), (39, 535776), (48, 435318), (52, 401832), (72, 290212), (78, 267888), (96, 217659), (104, 200916), (117, 178592), (144, 145106), (156, 133944), (208, 100458), (234, 89296), (288, 72553), (312, 66972), (416, 50229), (468, 44648), (624, 33486), (936, 22324), (1248, 16743), (1872, 11162), (3744, 5581)]