2016809680

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{614881}}^1$

素因数の和:614935

約数の個数: 40

約数和(自身を含む): 4803458184

約数和(自身を除く): 2786648504

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 614881, 1229762, 2459524, 3074405, 4919048, 6148810, 9838096, 12297620, 24595240, 25210121, 49190480, 50420242, 100840484, 126050605, 201680968, 252101210, 403361936, 504202420, 1008404840, 2016809680]

約数ペア:

[(1, 2016809680), (2, 1008404840), (4, 504202420), (5, 403361936), (8, 252101210), (10, 201680968), (16, 126050605), (20, 100840484), (40, 50420242), (41, 49190480), (80, 25210121), (82, 24595240), (164, 12297620), (205, 9838096), (328, 6148810), (410, 4919048), (656, 3074405), (820, 2459524), (1640, 1229762), (3280, 614881)]