640704

素因数分解:

$2^6\times 3^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1$

素因数の和:133

約数の個数: 56

約数和(自身を含む): 1755648

約数和(自身を除く): 1114944

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 47, 48, 64, 71, 94, 96, 141, 142, 188, 192, 213, 282, 284, 376, 426, 564, 568, 752, 852, 1128, 1136, 1504, 1704, 2256, 2272, 3008, 3337, 3408, 4512, 4544, 6674, 6816, 9024, 10011, 13348, 13632, 20022, 26696, 40044, 53392, 80088, 106784, 160176, 213568, 320352, 640704]

約数ペア:

[(1, 640704), (2, 320352), (3, 213568), (4, 160176), (6, 106784), (8, 80088), (12, 53392), (16, 40044), (24, 26696), (32, 20022), (47, 13632), (48, 13348), (64, 10011), (71, 9024), (94, 6816), (96, 6674), (141, 4544), (142, 4512), (188, 3408), (192, 3337), (213, 3008), (282, 2272), (284, 2256), (376, 1704), (426, 1504), (564, 1136), (568, 1128), (752, 852)]