18155800

素因数分解:

$2^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{6983}}^1$

素因数の和:7012

約数の個数: 48

約数和(自身を含む): 45465840

約数和(自身を除く): 27310040

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 100, 104, 130, 200, 260, 325, 520, 650, 1300, 2600, 6983, 13966, 27932, 34915, 55864, 69830, 90779, 139660, 174575, 181558, 279320, 349150, 363116, 453895, 698300, 726232, 907790, 1396600, 1815580, 2269475, 3631160, 4538950, 9077900, 18155800]

約数ペア:

[(1, 18155800), (2, 9077900), (4, 4538950), (5, 3631160), (8, 2269475), (10, 1815580), (13, 1396600), (20, 907790), (25, 726232), (26, 698300), (40, 453895), (50, 363116), (52, 349150), (65, 279320), (100, 181558), (104, 174575), (130, 139660), (200, 90779), (260, 69830), (325, 55864), (520, 34915), (650, 27932), (1300, 13966), (2600, 6983)]