142640920

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{3109}}^1$

素因数の和:3188

約数の個数: 64

約数和(自身を含む): 340358400

約数和(自身を除く): 197717480

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 37, 40, 62, 74, 124, 148, 155, 185, 248, 296, 310, 370, 620, 740, 1147, 1240, 1480, 2294, 3109, 4588, 5735, 6218, 9176, 11470, 12436, 15545, 22940, 24872, 31090, 45880, 62180, 96379, 115033, 124360, 192758, 230066, 385516, 460132, 481895, 575165, 771032, 920264, 963790, 1150330, 1927580, 2300660, 3566023, 3855160, 4601320, 7132046, 14264092, 17830115, 28528184, 35660230, 71320460, 142640920]

約数ペア:

[(1, 142640920), (2, 71320460), (4, 35660230), (5, 28528184), (8, 17830115), (10, 14264092), (20, 7132046), (31, 4601320), (37, 3855160), (40, 3566023), (62, 2300660), (74, 1927580), (124, 1150330), (148, 963790), (155, 920264), (185, 771032), (248, 575165), (296, 481895), (310, 460132), (370, 385516), (620, 230066), (740, 192758), (1147, 124360), (1240, 115033), (1480, 96379), (2294, 62180), (3109, 45880), (4588, 31090), (5735, 24872), (6218, 22940), (9176, 15545), (11470, 12436)]