20539740

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1549}}^1$

素因数の和:1591

約数の個数: 96

約数和(自身を含む): 65620800

約数和(自身を除く): 45081060

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 17, 20, 26, 30, 34, 39, 51, 52, 60, 65, 68, 78, 85, 102, 130, 156, 170, 195, 204, 221, 255, 260, 340, 390, 442, 510, 663, 780, 884, 1020, 1105, 1326, 1549, 2210, 2652, 3098, 3315, 4420, 4647, 6196, 6630, 7745, 9294, 13260, 15490, 18588, 20137, 23235, 26333, 30980, 40274, 46470, 52666, 60411, 78999, 80548, 92940, 100685, 105332, 120822, 131665, 157998, 201370, 241644, 263330, 302055, 315996, 342329, 394995, 402740, 526660, 604110, 684658, 789990, 1026987, 1208220, 1369316, 1579980, 1711645, 2053974, 3423290, 4107948, 5134935, 6846580, 10269870, 20539740]

約数ペア:

[(1, 20539740), (2, 10269870), (3, 6846580), (4, 5134935), (5, 4107948), (6, 3423290), (10, 2053974), (12, 1711645), (13, 1579980), (15, 1369316), (17, 1208220), (20, 1026987), (26, 789990), (30, 684658), (34, 604110), (39, 526660), (51, 402740), (52, 394995), (60, 342329), (65, 315996), (68, 302055), (78, 263330), (85, 241644), (102, 201370), (130, 157998), (156, 131665), (170, 120822), (195, 105332), (204, 100685), (221, 92940), (255, 80548), (260, 78999), (340, 60411), (390, 52666), (442, 46470), (510, 40274), (663, 30980), (780, 26333), (884, 23235), (1020, 20137), (1105, 18588), (1326, 15490), (1549, 13260), (2210, 9294), (2652, 7745), (3098, 6630), (3315, 6196), (4420, 4647)]