15211920

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{241}}^1\times {\mathrm{263}}^1$

素因数の和:520

約数の個数: 80

約数和(自身を含む): 47532672

約数和(自身を除く): 32320752

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 241, 263, 482, 526, 723, 789, 964, 1052, 1205, 1315, 1446, 1578, 1928, 2104, 2410, 2630, 2892, 3156, 3615, 3856, 3945, 4208, 4820, 5260, 5784, 6312, 7230, 7890, 9640, 10520, 11568, 12624, 14460, 15780, 19280, 21040, 28920, 31560, 57840, 63120, 63383, 126766, 190149, 253532, 316915, 380298, 507064, 633830, 760596, 950745, 1014128, 1267660, 1521192, 1901490, 2535320, 3042384, 3802980, 5070640, 7605960, 15211920]

約数ペア:

[(1, 15211920), (2, 7605960), (3, 5070640), (4, 3802980), (5, 3042384), (6, 2535320), (8, 1901490), (10, 1521192), (12, 1267660), (15, 1014128), (16, 950745), (20, 760596), (24, 633830), (30, 507064), (40, 380298), (48, 316915), (60, 253532), (80, 190149), (120, 126766), (240, 63383), (241, 63120), (263, 57840), (482, 31560), (526, 28920), (723, 21040), (789, 19280), (964, 15780), (1052, 14460), (1205, 12624), (1315, 11568), (1446, 10520), (1578, 9640), (1928, 7890), (2104, 7230), (2410, 6312), (2630, 5784), (2892, 5260), (3156, 4820), (3615, 4208), (3856, 3945)]