319647950

素因数分解:

$2^1\times 5^2\times {\mathrm{89}}^1\times {\mathrm{109}}^1\times {\mathrm{659}}^1$

素因数の和:869

約数の個数: 48

約数和(自身を含む): 607662000

約数和(自身を除く): 288014050

約数列:

[1, 2, 5, 10, 25, 50, 89, 109, 178, 218, 445, 545, 659, 890, 1090, 1318, 2225, 2725, 3295, 4450, 5450, 6590, 9701, 16475, 19402, 32950, 48505, 58651, 71831, 97010, 117302, 143662, 242525, 293255, 359155, 485050, 586510, 718310, 1466275, 1795775, 2932550, 3591550, 6392959, 12785918, 31964795, 63929590, 159823975, 319647950]

約数ペア:

[(1, 319647950), (2, 159823975), (5, 63929590), (10, 31964795), (25, 12785918), (50, 6392959), (89, 3591550), (109, 2932550), (178, 1795775), (218, 1466275), (445, 718310), (545, 586510), (659, 485050), (890, 359155), (1090, 293255), (1318, 242525), (2225, 143662), (2725, 117302), (3295, 97010), (4450, 71831), (5450, 58651), (6590, 48505), (9701, 32950), (16475, 19402)]