87204156920

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{251}}^1\times {\mathrm{280183}}^1$

素因数の和:280476

約数の個数: 64

約数和(自身を含む): 203346339840

約数和(自身を除く): 116142182920

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 251, 310, 502, 620, 1004, 1240, 1255, 2008, 2510, 5020, 7781, 10040, 15562, 31124, 38905, 62248, 77810, 155620, 280183, 311240, 560366, 1120732, 1400915, 2241464, 2801830, 5603660, 8685673, 11207320, 17371346, 34742692, 43428365, 69485384, 70325933, 86856730, 140651866, 173713460, 281303732, 347426920, 351629665, 562607464, 703259330, 1406518660, 2180103923, 2813037320, 4360207846, 8720415692, 10900519615, 17440831384, 21801039230, 43602078460, 87204156920]

約数ペア:

[(1, 87204156920), (2, 43602078460), (4, 21801039230), (5, 17440831384), (8, 10900519615), (10, 8720415692), (20, 4360207846), (31, 2813037320), (40, 2180103923), (62, 1406518660), (124, 703259330), (155, 562607464), (248, 351629665), (251, 347426920), (310, 281303732), (502, 173713460), (620, 140651866), (1004, 86856730), (1240, 70325933), (1255, 69485384), (2008, 43428365), (2510, 34742692), (5020, 17371346), (7781, 11207320), (10040, 8685673), (15562, 5603660), (31124, 2801830), (38905, 2241464), (62248, 1400915), (77810, 1120732), (155620, 560366), (280183, 311240)]