155963885

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{229}}^1$

素因数の和:342

約数の個数: 64

約数和(自身を含む): 246412800

約数和(自身を除く): 90448915

約数列:

[1, 5, 7, 11, 29, 35, 55, 61, 77, 145, 203, 229, 305, 319, 385, 427, 671, 1015, 1145, 1595, 1603, 1769, 2135, 2233, 2519, 3355, 4697, 6641, 8015, 8845, 11165, 12383, 12595, 13969, 17633, 19459, 23485, 33205, 46487, 61915, 69845, 73051, 88165, 97295, 97783, 136213, 153659, 232435, 365255, 405101, 488915, 511357, 681065, 768295, 1075613, 2025505, 2556785, 2835707, 4456111, 5378065, 14178535, 22280555, 31192777, 155963885]

約数ペア:

[(1, 155963885), (5, 31192777), (7, 22280555), (11, 14178535), (29, 5378065), (35, 4456111), (55, 2835707), (61, 2556785), (77, 2025505), (145, 1075613), (203, 768295), (229, 681065), (305, 511357), (319, 488915), (385, 405101), (427, 365255), (671, 232435), (1015, 153659), (1145, 136213), (1595, 97783), (1603, 97295), (1769, 88165), (2135, 73051), (2233, 69845), (2519, 61915), (3355, 46487), (4697, 33205), (6641, 23485), (8015, 19459), (8845, 17633), (11165, 13969), (12383, 12595)]