418289920

素因数分解:

$2^8\times 5^1\times {\mathrm{139}}^1\times {\mathrm{2351}}^1$

素因数の和:2511

約数の個数: 72

約数和(自身を含む): 1009572480

約数和(自身を除く): 591282560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 139, 160, 256, 278, 320, 556, 640, 695, 1112, 1280, 1390, 2224, 2351, 2780, 4448, 4702, 5560, 8896, 9404, 11120, 11755, 17792, 18808, 22240, 23510, 35584, 37616, 44480, 47020, 75232, 88960, 94040, 150464, 177920, 188080, 300928, 326789, 376160, 601856, 653578, 752320, 1307156, 1504640, 1633945, 2614312, 3009280, 3267890, 5228624, 6535780, 10457248, 13071560, 20914496, 26143120, 41828992, 52286240, 83657984, 104572480, 209144960, 418289920]

約数ペア:

[(1, 418289920), (2, 209144960), (4, 104572480), (5, 83657984), (8, 52286240), (10, 41828992), (16, 26143120), (20, 20914496), (32, 13071560), (40, 10457248), (64, 6535780), (80, 5228624), (128, 3267890), (139, 3009280), (160, 2614312), (256, 1633945), (278, 1504640), (320, 1307156), (556, 752320), (640, 653578), (695, 601856), (1112, 376160), (1280, 326789), (1390, 300928), (2224, 188080), (2351, 177920), (2780, 150464), (4448, 94040), (4702, 88960), (5560, 75232), (8896, 47020), (9404, 44480), (11120, 37616), (11755, 35584), (17792, 23510), (18808, 22240)]