19928200

素因数分解:

$2^3\times 5^2\times {\mathrm{37}}^1\times {\mathrm{2693}}^1$

素因数の和:2746

約数の個数: 48

約数和(自身を含む): 47602980

約数和(自身を除く): 27674780

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 37, 40, 50, 74, 100, 148, 185, 200, 296, 370, 740, 925, 1480, 1850, 2693, 3700, 5386, 7400, 10772, 13465, 21544, 26930, 53860, 67325, 99641, 107720, 134650, 199282, 269300, 398564, 498205, 538600, 797128, 996410, 1992820, 2491025, 3985640, 4982050, 9964100, 19928200]

約数ペア:

[(1, 19928200), (2, 9964100), (4, 4982050), (5, 3985640), (8, 2491025), (10, 1992820), (20, 996410), (25, 797128), (37, 538600), (40, 498205), (50, 398564), (74, 269300), (100, 199282), (148, 134650), (185, 107720), (200, 99641), (296, 67325), (370, 53860), (740, 26930), (925, 21544), (1480, 13465), (1850, 10772), (2693, 7400), (3700, 5386)]