4006480

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{821}}^1$

素因数の和:895

約数の個数: 40

約数和(自身を含む): 9479304

約数和(自身を除く): 5472824

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 244, 305, 488, 610, 821, 976, 1220, 1642, 2440, 3284, 4105, 4880, 6568, 8210, 13136, 16420, 32840, 50081, 65680, 100162, 200324, 250405, 400648, 500810, 801296, 1001620, 2003240, 4006480]

約数ペア:

[(1, 4006480), (2, 2003240), (4, 1001620), (5, 801296), (8, 500810), (10, 400648), (16, 250405), (20, 200324), (40, 100162), (61, 65680), (80, 50081), (122, 32840), (244, 16420), (305, 13136), (488, 8210), (610, 6568), (821, 4880), (976, 4105), (1220, 3284), (1642, 2440)]