15993880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{239}}^2$

素因数の和:496

約数の個数: 48

約数和(自身を含む): 41299920

約数和(自身を除く): 25306040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 239, 280, 478, 956, 1195, 1673, 1912, 2390, 3346, 4780, 6692, 8365, 9560, 13384, 16730, 33460, 57121, 66920, 114242, 228484, 285605, 399847, 456968, 571210, 799694, 1142420, 1599388, 1999235, 2284840, 3198776, 3998470, 7996940, 15993880]

約数ペア:

[(1, 15993880), (2, 7996940), (4, 3998470), (5, 3198776), (7, 2284840), (8, 1999235), (10, 1599388), (14, 1142420), (20, 799694), (28, 571210), (35, 456968), (40, 399847), (56, 285605), (70, 228484), (140, 114242), (239, 66920), (280, 57121), (478, 33460), (956, 16730), (1195, 13384), (1673, 9560), (1912, 8365), (2390, 6692), (3346, 4780)]