15864880

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{3251}}^1$

素因数の和:3325

約数の個数: 40

約数和(自身を含む): 37502064

約数和(自身を除く): 21637184

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 244, 305, 488, 610, 976, 1220, 2440, 3251, 4880, 6502, 13004, 16255, 26008, 32510, 52016, 65020, 130040, 198311, 260080, 396622, 793244, 991555, 1586488, 1983110, 3172976, 3966220, 7932440, 15864880]

約数ペア:

[(1, 15864880), (2, 7932440), (4, 3966220), (5, 3172976), (8, 1983110), (10, 1586488), (16, 991555), (20, 793244), (40, 396622), (61, 260080), (80, 198311), (122, 130040), (244, 65020), (305, 52016), (488, 32510), (610, 26008), (976, 16255), (1220, 13004), (2440, 6502), (3251, 4880)]