81437850

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{13921}}^1$

素因数の和:13952

約数の個数: 72

約数和(自身を含む): 235643772

約数和(自身を除く): 154205922

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 25, 26, 30, 39, 45, 50, 65, 75, 78, 90, 117, 130, 150, 195, 225, 234, 325, 390, 450, 585, 650, 975, 1170, 1950, 2925, 5850, 13921, 27842, 41763, 69605, 83526, 125289, 139210, 180973, 208815, 250578, 348025, 361946, 417630, 542919, 626445, 696050, 904865, 1044075, 1085838, 1252890, 1628757, 1809730, 2088150, 2714595, 3132225, 3257514, 4524325, 5429190, 6264450, 8143785, 9048650, 13572975, 16287570, 27145950, 40718925, 81437850]

約数ペア:

[(1, 81437850), (2, 40718925), (3, 27145950), (5, 16287570), (6, 13572975), (9, 9048650), (10, 8143785), (13, 6264450), (15, 5429190), (18, 4524325), (25, 3257514), (26, 3132225), (30, 2714595), (39, 2088150), (45, 1809730), (50, 1628757), (65, 1252890), (75, 1085838), (78, 1044075), (90, 904865), (117, 696050), (130, 626445), (150, 542919), (195, 417630), (225, 361946), (234, 348025), (325, 250578), (390, 208815), (450, 180973), (585, 139210), (650, 125289), (975, 83526), (1170, 69605), (1950, 41763), (2925, 27842), (5850, 13921)]