641637792

素因数分解:

$2^5\times 3^2\times {\mathrm{71}}^1\times {\mathrm{31379}}^1$

素因数の和:31466

約数の個数: 72

約数和(自身を含む): 1850415840

約数和(自身を除く): 1208778048

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 71, 72, 96, 142, 144, 213, 284, 288, 426, 568, 639, 852, 1136, 1278, 1704, 2272, 2556, 3408, 5112, 6816, 10224, 20448, 31379, 62758, 94137, 125516, 188274, 251032, 282411, 376548, 502064, 564822, 753096, 1004128, 1129644, 1506192, 2227909, 2259288, 3012384, 4455818, 4518576, 6683727, 8911636, 9037152, 13367454, 17823272, 20051181, 26734908, 35646544, 40102362, 53469816, 71293088, 80204724, 106939632, 160409448, 213879264, 320818896, 641637792]

約数ペア:

[(1, 641637792), (2, 320818896), (3, 213879264), (4, 160409448), (6, 106939632), (8, 80204724), (9, 71293088), (12, 53469816), (16, 40102362), (18, 35646544), (24, 26734908), (32, 20051181), (36, 17823272), (48, 13367454), (71, 9037152), (72, 8911636), (96, 6683727), (142, 4518576), (144, 4455818), (213, 3012384), (284, 2259288), (288, 2227909), (426, 1506192), (568, 1129644), (639, 1004128), (852, 753096), (1136, 564822), (1278, 502064), (1704, 376548), (2272, 282411), (2556, 251032), (3408, 188274), (5112, 125516), (6816, 94137), (10224, 62758), (20448, 31379)]