643904236415

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{239}}^1\times {\mathrm{661}}^1\times {\mathrm{6737}}^1$

素因数の和:7664

約数の個数: 48

約数和(自身を含む): 854285685120

約数和(自身を除く): 210381448705

約数列:

[1, 5, 11, 55, 121, 239, 605, 661, 1195, 2629, 3305, 6737, 7271, 13145, 28919, 33685, 36355, 74107, 79981, 144595, 157979, 370535, 399905, 789895, 815177, 1610143, 1737769, 4075885, 4453157, 8050715, 8688845, 17711573, 19115459, 22265785, 48984727, 88557865, 95577295, 194827303, 244923635, 538831997, 974136515, 1064304523, 2694159985, 5321522615, 11707349753, 58536748765, 128780847283, 643904236415]

約数ペア:

[(1, 643904236415), (5, 128780847283), (11, 58536748765), (55, 11707349753), (121, 5321522615), (239, 2694159985), (605, 1064304523), (661, 974136515), (1195, 538831997), (2629, 244923635), (3305, 194827303), (6737, 95577295), (7271, 88557865), (13145, 48984727), (28919, 22265785), (33685, 19115459), (36355, 17711573), (74107, 8688845), (79981, 8050715), (144595, 4453157), (157979, 4075885), (370535, 1737769), (399905, 1610143), (789895, 815177)]