209999820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{181}}^1\times {\mathrm{317}}^1$

素因数の和:571

約数の個数: 96

約数和(自身を含む): 602836416

約数和(自身を除く): 392836596

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 61, 122, 181, 183, 244, 305, 317, 362, 366, 543, 610, 634, 724, 732, 905, 915, 951, 1086, 1220, 1268, 1585, 1810, 1830, 1902, 2172, 2715, 3170, 3620, 3660, 3804, 4755, 5430, 6340, 9510, 10860, 11041, 19020, 19337, 22082, 33123, 38674, 44164, 55205, 57377, 58011, 66246, 77348, 96685, 110410, 114754, 116022, 132492, 165615, 172131, 193370, 220820, 229508, 232044, 286885, 290055, 331230, 344262, 386740, 573770, 580110, 662460, 688524, 860655, 1147540, 1160220, 1721310, 3442620, 3499997, 6999994, 10499991, 13999988, 17499985, 20999982, 34999970, 41999964, 52499955, 69999940, 104999910, 209999820]

約数ペア:

[(1, 209999820), (2, 104999910), (3, 69999940), (4, 52499955), (5, 41999964), (6, 34999970), (10, 20999982), (12, 17499985), (15, 13999988), (20, 10499991), (30, 6999994), (60, 3499997), (61, 3442620), (122, 1721310), (181, 1160220), (183, 1147540), (244, 860655), (305, 688524), (317, 662460), (362, 580110), (366, 573770), (543, 386740), (610, 344262), (634, 331230), (724, 290055), (732, 286885), (905, 232044), (915, 229508), (951, 220820), (1086, 193370), (1220, 172131), (1268, 165615), (1585, 132492), (1810, 116022), (1830, 114754), (1902, 110410), (2172, 96685), (2715, 77348), (3170, 66246), (3620, 58011), (3660, 57377), (3804, 55205), (4755, 44164), (5430, 38674), (6340, 33123), (9510, 22082), (10860, 19337), (11041, 19020)]