18633950

素因数分解:

$2^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{181}}^1$

素因数の和:293

約数の個数: 48

約数和(自身を含む): 36560160

約数和(自身を除く): 17926210

約数列:

[1, 2, 5, 10, 25, 29, 50, 58, 71, 142, 145, 181, 290, 355, 362, 710, 725, 905, 1450, 1775, 1810, 2059, 3550, 4118, 4525, 5249, 9050, 10295, 10498, 12851, 20590, 25702, 26245, 51475, 52490, 64255, 102950, 128510, 131225, 262450, 321275, 372679, 642550, 745358, 1863395, 3726790, 9316975, 18633950]

約数ペア:

[(1, 18633950), (2, 9316975), (5, 3726790), (10, 1863395), (25, 745358), (29, 642550), (50, 372679), (58, 321275), (71, 262450), (142, 131225), (145, 128510), (181, 102950), (290, 64255), (355, 52490), (362, 51475), (710, 26245), (725, 25702), (905, 20590), (1450, 12851), (1775, 10498), (1810, 10295), (2059, 9050), (3550, 5249), (4118, 4525)]