17798950

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{197}}^1$

素因数の和:361

約数の個数: 48

約数和(自身を含む): 36091440

約数和(自身を除く): 18292490

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 139, 197, 278, 325, 394, 650, 695, 985, 1390, 1807, 1970, 2561, 3475, 3614, 4925, 5122, 6950, 9035, 9850, 12805, 18070, 25610, 27383, 45175, 54766, 64025, 90350, 128050, 136915, 273830, 355979, 684575, 711958, 1369150, 1779895, 3559790, 8899475, 17798950]

約数ペア:

[(1, 17798950), (2, 8899475), (5, 3559790), (10, 1779895), (13, 1369150), (25, 711958), (26, 684575), (50, 355979), (65, 273830), (130, 136915), (139, 128050), (197, 90350), (278, 64025), (325, 54766), (394, 45175), (650, 27383), (695, 25610), (985, 18070), (1390, 12805), (1807, 9850), (1970, 9035), (2561, 6950), (3475, 5122), (3614, 4925)]