42260440

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{173}}^1\times {\mathrm{197}}^1$

素因数の和:412

約数の個数: 64

約数和(自身を含む): 99221760

約数和(自身を除く): 56961320

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 173, 197, 248, 310, 346, 394, 620, 692, 788, 865, 985, 1240, 1384, 1576, 1730, 1970, 3460, 3940, 5363, 6107, 6920, 7880, 10726, 12214, 21452, 24428, 26815, 30535, 34081, 42904, 48856, 53630, 61070, 68162, 107260, 122140, 136324, 170405, 214520, 244280, 272648, 340810, 681620, 1056511, 1363240, 2113022, 4226044, 5282555, 8452088, 10565110, 21130220, 42260440]

約数ペア:

[(1, 42260440), (2, 21130220), (4, 10565110), (5, 8452088), (8, 5282555), (10, 4226044), (20, 2113022), (31, 1363240), (40, 1056511), (62, 681620), (124, 340810), (155, 272648), (173, 244280), (197, 214520), (248, 170405), (310, 136324), (346, 122140), (394, 107260), (620, 68162), (692, 61070), (788, 53630), (865, 48856), (985, 42904), (1240, 34081), (1384, 30535), (1576, 26815), (1730, 24428), (1970, 21452), (3460, 12214), (3940, 10726), (5363, 7880), (6107, 6920)]