193906640

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{109}}^1\times {\mathrm{601}}^1$

素因数の和:760

約数の個数: 80

約数和(自身を含む): 468042960

約数和(自身を除く): 274136320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 74, 80, 109, 148, 185, 218, 296, 370, 436, 545, 592, 601, 740, 872, 1090, 1202, 1480, 1744, 2180, 2404, 2960, 3005, 4033, 4360, 4808, 6010, 8066, 8720, 9616, 12020, 16132, 20165, 22237, 24040, 32264, 40330, 44474, 48080, 64528, 65509, 80660, 88948, 111185, 131018, 161320, 177896, 222370, 262036, 322640, 327545, 355792, 444740, 524072, 655090, 889480, 1048144, 1310180, 1778960, 2423833, 2620360, 4847666, 5240720, 9695332, 12119165, 19390664, 24238330, 38781328, 48476660, 96953320, 193906640]

約数ペア:

[(1, 193906640), (2, 96953320), (4, 48476660), (5, 38781328), (8, 24238330), (10, 19390664), (16, 12119165), (20, 9695332), (37, 5240720), (40, 4847666), (74, 2620360), (80, 2423833), (109, 1778960), (148, 1310180), (185, 1048144), (218, 889480), (296, 655090), (370, 524072), (436, 444740), (545, 355792), (592, 327545), (601, 322640), (740, 262036), (872, 222370), (1090, 177896), (1202, 161320), (1480, 131018), (1744, 111185), (2180, 88948), (2404, 80660), (2960, 65509), (3005, 64528), (4033, 48080), (4360, 44474), (4808, 40330), (6010, 32264), (8066, 24040), (8720, 22237), (9616, 20165), (12020, 16132)]