68955440

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{21023}}^1$

素因数の和:21077

約数の個数: 40

約数和(自身を含む): 164239488

約数和(自身を除く): 95284048

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 21023, 42046, 84092, 105115, 168184, 210230, 336368, 420460, 840920, 861943, 1681840, 1723886, 3447772, 4309715, 6895544, 8619430, 13791088, 17238860, 34477720, 68955440]

約数ペア:

[(1, 68955440), (2, 34477720), (4, 17238860), (5, 13791088), (8, 8619430), (10, 6895544), (16, 4309715), (20, 3447772), (40, 1723886), (41, 1681840), (80, 861943), (82, 840920), (164, 420460), (205, 336368), (328, 210230), (410, 168184), (656, 105115), (820, 84092), (1640, 42046), (3280, 21023)]