128163950

素因数分解:

$2^1\times 5^2\times {\mathrm{41}}^1\times {\mathrm{101}}^1\times {\mathrm{619}}^1$

素因数の和:773

約数の個数: 48

約数和(自身を含む): 247015440

約数和(自身を除く): 118851490

約数列:

[1, 2, 5, 10, 25, 41, 50, 82, 101, 202, 205, 410, 505, 619, 1010, 1025, 1238, 2050, 2525, 3095, 4141, 5050, 6190, 8282, 15475, 20705, 25379, 30950, 41410, 50758, 62519, 103525, 125038, 126895, 207050, 253790, 312595, 625190, 634475, 1268950, 1562975, 2563279, 3125950, 5126558, 12816395, 25632790, 64081975, 128163950]

約数ペア:

[(1, 128163950), (2, 64081975), (5, 25632790), (10, 12816395), (25, 5126558), (41, 3125950), (50, 2563279), (82, 1562975), (101, 1268950), (202, 634475), (205, 625190), (410, 312595), (505, 253790), (619, 207050), (1010, 126895), (1025, 125038), (1238, 103525), (2050, 62519), (2525, 50758), (3095, 41410), (4141, 30950), (5050, 25379), (6190, 20705), (8282, 15475)]