19782139660

素因数分解:

$2^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{163}}^1\times {\mathrm{44293}}^1$

素因数の和:44602

約数の個数: 48

約数和(自身を含む): 42103395936

約数和(自身を除く): 22321256276

約数列:

[1, 2, 4, 5, 10, 20, 137, 163, 274, 326, 548, 652, 685, 815, 1370, 1630, 2740, 3260, 22331, 44293, 44662, 88586, 89324, 111655, 177172, 221465, 223310, 442930, 446620, 885860, 6068141, 7219759, 12136282, 14439518, 24272564, 28879036, 30340705, 36098795, 60681410, 72197590, 121362820, 144395180, 989106983, 1978213966, 3956427932, 4945534915, 9891069830, 19782139660]

約数ペア:

[(1, 19782139660), (2, 9891069830), (4, 4945534915), (5, 3956427932), (10, 1978213966), (20, 989106983), (137, 144395180), (163, 121362820), (274, 72197590), (326, 60681410), (548, 36098795), (652, 30340705), (685, 28879036), (815, 24272564), (1370, 14439518), (1630, 12136282), (2740, 7219759), (3260, 6068141), (22331, 885860), (44293, 446620), (44662, 442930), (88586, 223310), (89324, 221465), (111655, 177172)]