15578520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{991}}^1$

素因数の和:1136

約数の個数: 64

約数和(自身を含む): 47139840

約数和(自身を除く): 31561320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 131, 262, 393, 524, 655, 786, 991, 1048, 1310, 1572, 1965, 1982, 2620, 2973, 3144, 3930, 3964, 4955, 5240, 5946, 7860, 7928, 9910, 11892, 14865, 15720, 19820, 23784, 29730, 39640, 59460, 118920, 129821, 259642, 389463, 519284, 649105, 778926, 1038568, 1298210, 1557852, 1947315, 2596420, 3115704, 3894630, 5192840, 7789260, 15578520]

約数ペア:

[(1, 15578520), (2, 7789260), (3, 5192840), (4, 3894630), (5, 3115704), (6, 2596420), (8, 1947315), (10, 1557852), (12, 1298210), (15, 1038568), (20, 778926), (24, 649105), (30, 519284), (40, 389463), (60, 259642), (120, 129821), (131, 118920), (262, 59460), (393, 39640), (524, 29730), (655, 23784), (786, 19820), (991, 15720), (1048, 14865), (1310, 11892), (1572, 9910), (1965, 7928), (1982, 7860), (2620, 5946), (2973, 5240), (3144, 4955), (3930, 3964)]