20105730

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{773}}^1$

素因数の和:820

約数の個数: 72

約数和(自身を含む): 55602612

約数和(自身を除く): 35496882

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 17, 18, 30, 34, 45, 51, 85, 90, 102, 153, 170, 255, 289, 306, 510, 578, 765, 773, 867, 1445, 1530, 1546, 1734, 2319, 2601, 2890, 3865, 4335, 4638, 5202, 6957, 7730, 8670, 11595, 13005, 13141, 13914, 23190, 26010, 26282, 34785, 39423, 65705, 69570, 78846, 118269, 131410, 197115, 223397, 236538, 394230, 446794, 591345, 670191, 1116985, 1182690, 1340382, 2010573, 2233970, 3350955, 4021146, 6701910, 10052865, 20105730]

約数ペア:

[(1, 20105730), (2, 10052865), (3, 6701910), (5, 4021146), (6, 3350955), (9, 2233970), (10, 2010573), (15, 1340382), (17, 1182690), (18, 1116985), (30, 670191), (34, 591345), (45, 446794), (51, 394230), (85, 236538), (90, 223397), (102, 197115), (153, 131410), (170, 118269), (255, 78846), (289, 69570), (306, 65705), (510, 39423), (578, 34785), (765, 26282), (773, 26010), (867, 23190), (1445, 13914), (1530, 13141), (1546, 13005), (1734, 11595), (2319, 8670), (2601, 7730), (2890, 6957), (3865, 5202), (4335, 4638)]