4991620

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{97}}^1$

素因数の和:220

約数の個数: 48

約数和(自身を含む): 11063808

約数和(自身を除く): 6072188

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 83, 97, 124, 155, 166, 194, 310, 332, 388, 415, 485, 620, 830, 970, 1660, 1940, 2573, 3007, 5146, 6014, 8051, 10292, 12028, 12865, 15035, 16102, 25730, 30070, 32204, 40255, 51460, 60140, 80510, 161020, 249581, 499162, 998324, 1247905, 2495810, 4991620]

約数ペア:

[(1, 4991620), (2, 2495810), (4, 1247905), (5, 998324), (10, 499162), (20, 249581), (31, 161020), (62, 80510), (83, 60140), (97, 51460), (124, 40255), (155, 32204), (166, 30070), (194, 25730), (310, 16102), (332, 15035), (388, 12865), (415, 12028), (485, 10292), (620, 8051), (830, 6014), (970, 5146), (1660, 3007), (1940, 2573)]