128539409980

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{15101}}^1\times {\mathrm{13729}}^1$

素因数の和:28870

約数の個数: 48

約数和(自身を含む): 278679018240

約数和(自身を除く): 150139608260

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 13729, 15101, 27458, 30202, 54916, 60404, 68645, 75505, 137290, 151010, 274580, 302020, 425599, 468131, 851198, 936262, 1702396, 1872524, 2127995, 2340655, 4255990, 4681310, 8511980, 9362620, 207321629, 414643258, 829286516, 1036608145, 2073216290, 4146432580, 6426970499, 12853940998, 25707881996, 32134852495, 64269704990, 128539409980]

約数ペア:

[(1, 128539409980), (2, 64269704990), (4, 32134852495), (5, 25707881996), (10, 12853940998), (20, 6426970499), (31, 4146432580), (62, 2073216290), (124, 1036608145), (155, 829286516), (310, 414643258), (620, 207321629), (13729, 9362620), (15101, 8511980), (27458, 4681310), (30202, 4255990), (54916, 2340655), (60404, 2127995), (68645, 1872524), (75505, 1702396), (137290, 936262), (151010, 851198), (274580, 468131), (302020, 425599)]