401029760

素因数分解:

$2^7\times 5^1\times {\mathrm{626609}}^1$

素因数の和:626628

約数の個数: 32

約数和(自身を含む): 958713300

約数和(自身を除く): 557683540

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 626609, 1253218, 2506436, 3133045, 5012872, 6266090, 10025744, 12532180, 20051488, 25064360, 40102976, 50128720, 80205952, 100257440, 200514880, 401029760]

約数ペア:

[(1, 401029760), (2, 200514880), (4, 100257440), (5, 80205952), (8, 50128720), (10, 40102976), (16, 25064360), (20, 20051488), (32, 12532180), (40, 10025744), (64, 6266090), (80, 5012872), (128, 3133045), (160, 2506436), (320, 1253218), (640, 626609)]