17915950

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{641}}^1$

素因数の和:709

約数の個数: 48

約数和(自身を含む): 36778896

約数和(自身を除く): 18862946

約数列:

[1, 2, 5, 10, 13, 25, 26, 43, 50, 65, 86, 130, 215, 325, 430, 559, 641, 650, 1075, 1118, 1282, 2150, 2795, 3205, 5590, 6410, 8333, 13975, 16025, 16666, 27563, 27950, 32050, 41665, 55126, 83330, 137815, 208325, 275630, 358319, 416650, 689075, 716638, 1378150, 1791595, 3583190, 8957975, 17915950]

約数ペア:

[(1, 17915950), (2, 8957975), (5, 3583190), (10, 1791595), (13, 1378150), (25, 716638), (26, 689075), (43, 416650), (50, 358319), (65, 275630), (86, 208325), (130, 137815), (215, 83330), (325, 55126), (430, 41665), (559, 32050), (641, 27950), (650, 27563), (1075, 16666), (1118, 16025), (1282, 13975), (2150, 8333), (2795, 6410), (3205, 5590)]