209492620

素因数分解:

$2^2\times 5^1\times {\mathrm{173}}^1\times {\mathrm{191}}^1\times {\mathrm{317}}^1$

素因数の和:690

約数の個数: 48

約数和(自身を含む): 446197248

約数和(自身を除く): 236704628

約数列:

[1, 2, 4, 5, 10, 20, 173, 191, 317, 346, 382, 634, 692, 764, 865, 955, 1268, 1585, 1730, 1910, 3170, 3460, 3820, 6340, 33043, 54841, 60547, 66086, 109682, 121094, 132172, 165215, 219364, 242188, 274205, 302735, 330430, 548410, 605470, 660860, 1096820, 1210940, 10474631, 20949262, 41898524, 52373155, 104746310, 209492620]

約数ペア:

[(1, 209492620), (2, 104746310), (4, 52373155), (5, 41898524), (10, 20949262), (20, 10474631), (173, 1210940), (191, 1096820), (317, 660860), (346, 605470), (382, 548410), (634, 330430), (692, 302735), (764, 274205), (865, 242188), (955, 219364), (1268, 165215), (1585, 132172), (1730, 121094), (1910, 109682), (3170, 66086), (3460, 60547), (3820, 54841), (6340, 33043)]