30905590

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1$

素因数の和:205

約数の個数: 64

約数和(自身を含む): 62208000

約数和(自身を除く): 31302410

約数列:

[1, 2, 5, 10, 19, 29, 38, 58, 71, 79, 95, 142, 145, 158, 190, 290, 355, 395, 551, 710, 790, 1102, 1349, 1501, 2059, 2291, 2698, 2755, 3002, 4118, 4582, 5510, 5609, 6745, 7505, 10295, 11218, 11455, 13490, 15010, 20590, 22910, 28045, 39121, 43529, 56090, 78242, 87058, 106571, 162661, 195605, 213142, 217645, 325322, 391210, 435290, 532855, 813305, 1065710, 1626610, 3090559, 6181118, 15452795, 30905590]

約数ペア:

[(1, 30905590), (2, 15452795), (5, 6181118), (10, 3090559), (19, 1626610), (29, 1065710), (38, 813305), (58, 532855), (71, 435290), (79, 391210), (95, 325322), (142, 217645), (145, 213142), (158, 195605), (190, 162661), (290, 106571), (355, 87058), (395, 78242), (551, 56090), (710, 43529), (790, 39121), (1102, 28045), (1349, 22910), (1501, 20590), (2059, 15010), (2291, 13490), (2698, 11455), (2755, 11218), (3002, 10295), (4118, 7505), (4582, 6745), (5510, 5609)]