86840920

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{1187}}^1$

素因数の和:1288

約数の個数: 64

約数和(自身を含む): 205286400

約数和(自身を除く): 118445480

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 59, 62, 118, 124, 155, 236, 248, 295, 310, 472, 590, 620, 1180, 1187, 1240, 1829, 2360, 2374, 3658, 4748, 5935, 7316, 9145, 9496, 11870, 14632, 18290, 23740, 36580, 36797, 47480, 70033, 73160, 73594, 140066, 147188, 183985, 280132, 294376, 350165, 367970, 560264, 700330, 735940, 1400660, 1471880, 2171023, 2801320, 4342046, 8684092, 10855115, 17368184, 21710230, 43420460, 86840920]

約数ペア:

[(1, 86840920), (2, 43420460), (4, 21710230), (5, 17368184), (8, 10855115), (10, 8684092), (20, 4342046), (31, 2801320), (40, 2171023), (59, 1471880), (62, 1400660), (118, 735940), (124, 700330), (155, 560264), (236, 367970), (248, 350165), (295, 294376), (310, 280132), (472, 183985), (590, 147188), (620, 140066), (1180, 73594), (1187, 73160), (1240, 70033), (1829, 47480), (2360, 36797), (2374, 36580), (3658, 23740), (4748, 18290), (5935, 14632), (7316, 11870), (9145, 9496)]