640255392

素因数分解:

$2^5\times 3^2\times 7^1\times {\mathrm{317587}}^1$

素因数の和:317610

約数の個数: 72

約数和(自身を含む): 2080836576

約数和(自身を除く): 1440581184

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 32, 36, 42, 48, 56, 63, 72, 84, 96, 112, 126, 144, 168, 224, 252, 288, 336, 504, 672, 1008, 2016, 317587, 635174, 952761, 1270348, 1905522, 2223109, 2540696, 2858283, 3811044, 4446218, 5081392, 5716566, 6669327, 7622088, 8892436, 10162784, 11433132, 13338654, 15244176, 17784872, 20007981, 22866264, 26677308, 30488352, 35569744, 40015962, 45732528, 53354616, 71139488, 80031924, 91465056, 106709232, 160063848, 213418464, 320127696, 640255392]

約数ペア:

[(1, 640255392), (2, 320127696), (3, 213418464), (4, 160063848), (6, 106709232), (7, 91465056), (8, 80031924), (9, 71139488), (12, 53354616), (14, 45732528), (16, 40015962), (18, 35569744), (21, 30488352), (24, 26677308), (28, 22866264), (32, 20007981), (36, 17784872), (42, 15244176), (48, 13338654), (56, 11433132), (63, 10162784), (72, 8892436), (84, 7622088), (96, 6669327), (112, 5716566), (126, 5081392), (144, 4446218), (168, 3811044), (224, 2858283), (252, 2540696), (288, 2223109), (336, 1905522), (504, 1270348), (672, 952761), (1008, 635174), (2016, 317587)]