661382085

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{499}}^1\times {\mathrm{971}}^1$

素因数の和:1498

約数の個数: 64

約数和(自身を含む): 1306368000

約数和(自身を除く): 644985915

約数列:

[1, 3, 5, 7, 13, 15, 21, 35, 39, 65, 91, 105, 195, 273, 455, 499, 971, 1365, 1497, 2495, 2913, 3493, 4855, 6487, 6797, 7485, 10479, 12623, 14565, 17465, 19461, 20391, 32435, 33985, 37869, 45409, 52395, 63115, 88361, 97305, 101955, 136227, 189345, 227045, 265083, 441805, 484529, 681135, 1325415, 1453587, 2422645, 3391703, 6298877, 7267935, 10175109, 16958515, 18896631, 31494385, 44092139, 50875545, 94483155, 132276417, 220460695, 661382085]

約数ペア:

[(1, 661382085), (3, 220460695), (5, 132276417), (7, 94483155), (13, 50875545), (15, 44092139), (21, 31494385), (35, 18896631), (39, 16958515), (65, 10175109), (91, 7267935), (105, 6298877), (195, 3391703), (273, 2422645), (455, 1453587), (499, 1325415), (971, 681135), (1365, 484529), (1497, 441805), (2495, 265083), (2913, 227045), (3493, 189345), (4855, 136227), (6487, 101955), (6797, 97305), (7485, 88361), (10479, 63115), (12623, 52395), (14565, 45409), (17465, 37869), (19461, 33985), (20391, 32435)]