211347780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{71887}}^1$

素因数の和:71913

約数の個数: 72

約数和(自身を含む): 688399488

約数和(自身を除く): 477051708

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 71887, 143774, 215661, 287548, 359435, 431322, 503209, 718870, 862644, 1006418, 1078305, 1437740, 1509627, 2012836, 2156610, 2516045, 3019254, 3522463, 4313220, 5032090, 6038508, 7044926, 7548135, 10064180, 10567389, 14089852, 15096270, 17612315, 21134778, 30192540, 35224630, 42269556, 52836945, 70449260, 105673890, 211347780]

約数ペア:

[(1, 211347780), (2, 105673890), (3, 70449260), (4, 52836945), (5, 42269556), (6, 35224630), (7, 30192540), (10, 21134778), (12, 17612315), (14, 15096270), (15, 14089852), (20, 10567389), (21, 10064180), (28, 7548135), (30, 7044926), (35, 6038508), (42, 5032090), (49, 4313220), (60, 3522463), (70, 3019254), (84, 2516045), (98, 2156610), (105, 2012836), (140, 1509627), (147, 1437740), (196, 1078305), (210, 1006418), (245, 862644), (294, 718870), (420, 503209), (490, 431322), (588, 359435), (735, 287548), (980, 215661), (1470, 143774), (2940, 71887)]