216613880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{787}}^1\times {\mathrm{983}}^1$

素因数の和:1788

約数の個数: 64

約数和(自身を含む): 558282240

約数和(自身を除く): 341668360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 787, 983, 1574, 1966, 3148, 3932, 3935, 4915, 5509, 6296, 6881, 7864, 7870, 9830, 11018, 13762, 15740, 19660, 22036, 27524, 27545, 31480, 34405, 39320, 44072, 55048, 55090, 68810, 110180, 137620, 220360, 275240, 773621, 1547242, 3094484, 3868105, 5415347, 6188968, 7736210, 10830694, 15472420, 21661388, 27076735, 30944840, 43322776, 54153470, 108306940, 216613880]

約数ペア:

[(1, 216613880), (2, 108306940), (4, 54153470), (5, 43322776), (7, 30944840), (8, 27076735), (10, 21661388), (14, 15472420), (20, 10830694), (28, 7736210), (35, 6188968), (40, 5415347), (56, 3868105), (70, 3094484), (140, 1547242), (280, 773621), (787, 275240), (983, 220360), (1574, 137620), (1966, 110180), (3148, 68810), (3932, 55090), (3935, 55048), (4915, 44072), (5509, 39320), (6296, 34405), (6881, 31480), (7864, 27545), (7870, 27524), (9830, 22036), (11018, 19660), (13762, 15740)]