20747904

素因数分解:

$2^7\times 3^1\times {\mathrm{71}}^1\times {\mathrm{761}}^1$

素因数の和:849

約数の個数: 64

約数和(自身を含む): 55961280

約数和(自身を除く): 35213376

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 71, 96, 128, 142, 192, 213, 284, 384, 426, 568, 761, 852, 1136, 1522, 1704, 2272, 2283, 3044, 3408, 4544, 4566, 6088, 6816, 9088, 9132, 12176, 13632, 18264, 24352, 27264, 36528, 48704, 54031, 73056, 97408, 108062, 146112, 162093, 216124, 292224, 324186, 432248, 648372, 864496, 1296744, 1728992, 2593488, 3457984, 5186976, 6915968, 10373952, 20747904]

約数ペア:

[(1, 20747904), (2, 10373952), (3, 6915968), (4, 5186976), (6, 3457984), (8, 2593488), (12, 1728992), (16, 1296744), (24, 864496), (32, 648372), (48, 432248), (64, 324186), (71, 292224), (96, 216124), (128, 162093), (142, 146112), (192, 108062), (213, 97408), (284, 73056), (384, 54031), (426, 48704), (568, 36528), (761, 27264), (852, 24352), (1136, 18264), (1522, 13632), (1704, 12176), (2272, 9132), (2283, 9088), (3044, 6816), (3408, 6088), (4544, 4566)]