21974500

素因数分解:

$2^2\times 5^3\times {\mathrm{71}}^1\times {\mathrm{619}}^1$

素因数の和:709

約数の個数: 48

約数和(自身を含む): 48746880

約数和(自身を除く): 26772380

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 71, 100, 125, 142, 250, 284, 355, 500, 619, 710, 1238, 1420, 1775, 2476, 3095, 3550, 6190, 7100, 8875, 12380, 15475, 17750, 30950, 35500, 43949, 61900, 77375, 87898, 154750, 175796, 219745, 309500, 439490, 878980, 1098725, 2197450, 4394900, 5493625, 10987250, 21974500]

約数ペア:

[(1, 21974500), (2, 10987250), (4, 5493625), (5, 4394900), (10, 2197450), (20, 1098725), (25, 878980), (50, 439490), (71, 309500), (100, 219745), (125, 175796), (142, 154750), (250, 87898), (284, 77375), (355, 61900), (500, 43949), (619, 35500), (710, 30950), (1238, 17750), (1420, 15475), (1775, 12380), (2476, 8875), (3095, 7100), (3550, 6190)]