200217820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{2521}}^1$

素因数の和:2579

約数の個数: 72

約数和(自身を含む): 484284528

約数和(自身を除く): 284066708

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 44, 55, 76, 95, 110, 190, 209, 220, 361, 380, 418, 722, 836, 1045, 1444, 1805, 2090, 2521, 3610, 3971, 4180, 5042, 7220, 7942, 10084, 12605, 15884, 19855, 25210, 27731, 39710, 47899, 50420, 55462, 79420, 95798, 110924, 138655, 191596, 239495, 277310, 478990, 526889, 554620, 910081, 957980, 1053778, 1820162, 2107556, 2634445, 3640324, 4550405, 5268890, 9100810, 10010891, 10537780, 18201620, 20021782, 40043564, 50054455, 100108910, 200217820]

約数ペア:

[(1, 200217820), (2, 100108910), (4, 50054455), (5, 40043564), (10, 20021782), (11, 18201620), (19, 10537780), (20, 10010891), (22, 9100810), (38, 5268890), (44, 4550405), (55, 3640324), (76, 2634445), (95, 2107556), (110, 1820162), (190, 1053778), (209, 957980), (220, 910081), (361, 554620), (380, 526889), (418, 478990), (722, 277310), (836, 239495), (1045, 191596), (1444, 138655), (1805, 110924), (2090, 95798), (2521, 79420), (3610, 55462), (3971, 50420), (4180, 47899), (5042, 39710), (7220, 27731), (7942, 25210), (10084, 19855), (12605, 15884)]