161774120

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{283}}^1\times {\mathrm{461}}^1$

素因数の和:786

約数の個数: 64

約数和(自身を含む): 377879040

約数和(自身を除く): 216104920

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 283, 310, 461, 566, 620, 922, 1132, 1240, 1415, 1844, 2264, 2305, 2830, 3688, 4610, 5660, 8773, 9220, 11320, 14291, 17546, 18440, 28582, 35092, 43865, 57164, 70184, 71455, 87730, 114328, 130463, 142910, 175460, 260926, 285820, 350920, 521852, 571640, 652315, 1043704, 1304630, 2609260, 4044353, 5218520, 8088706, 16177412, 20221765, 32354824, 40443530, 80887060, 161774120]

約数ペア:

[(1, 161774120), (2, 80887060), (4, 40443530), (5, 32354824), (8, 20221765), (10, 16177412), (20, 8088706), (31, 5218520), (40, 4044353), (62, 2609260), (124, 1304630), (155, 1043704), (248, 652315), (283, 571640), (310, 521852), (461, 350920), (566, 285820), (620, 260926), (922, 175460), (1132, 142910), (1240, 130463), (1415, 114328), (1844, 87730), (2264, 71455), (2305, 70184), (2830, 57164), (3688, 43865), (4610, 35092), (5660, 28582), (8773, 18440), (9220, 17546), (11320, 14291)]