19619875

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{751}}^1$

素因数の和:796

約数の個数: 32

約数和(自身を含む): 28154880

約数和(自身を除く): 8535005

約数列:

[1, 5, 11, 19, 25, 55, 95, 125, 209, 275, 475, 751, 1045, 1375, 2375, 3755, 5225, 8261, 14269, 18775, 26125, 41305, 71345, 93875, 156959, 206525, 356725, 784795, 1032625, 1783625, 3923975, 19619875]

約数ペア:

[(1, 19619875), (5, 3923975), (11, 1783625), (19, 1032625), (25, 784795), (55, 356725), (95, 206525), (125, 156959), (209, 93875), (275, 71345), (475, 41305), (751, 26125), (1045, 18775), (1375, 14269), (2375, 8261), (3755, 5225)]