201451280

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{41281}}^1$

素因数の和:41355

約数の個数: 40

約数和(自身を含む): 476064024

約数和(自身を除く): 274612744

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 244, 305, 488, 610, 976, 1220, 2440, 4880, 41281, 82562, 165124, 206405, 330248, 412810, 660496, 825620, 1651240, 2518141, 3302480, 5036282, 10072564, 12590705, 20145128, 25181410, 40290256, 50362820, 100725640, 201451280]

約数ペア:

[(1, 201451280), (2, 100725640), (4, 50362820), (5, 40290256), (8, 25181410), (10, 20145128), (16, 12590705), (20, 10072564), (40, 5036282), (61, 3302480), (80, 2518141), (122, 1651240), (244, 825620), (305, 660496), (488, 412810), (610, 330248), (976, 206405), (1220, 165124), (2440, 82562), (4880, 41281)]