20254440

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{2767}}^1$

素因数の和:2842

約数の個数: 64

約数和(自身を含む): 61781760

約数和(自身を除く): 41527320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 61, 120, 122, 183, 244, 305, 366, 488, 610, 732, 915, 1220, 1464, 1830, 2440, 2767, 3660, 5534, 7320, 8301, 11068, 13835, 16602, 22136, 27670, 33204, 41505, 55340, 66408, 83010, 110680, 166020, 168787, 332040, 337574, 506361, 675148, 843935, 1012722, 1350296, 1687870, 2025444, 2531805, 3375740, 4050888, 5063610, 6751480, 10127220, 20254440]

約数ペア:

[(1, 20254440), (2, 10127220), (3, 6751480), (4, 5063610), (5, 4050888), (6, 3375740), (8, 2531805), (10, 2025444), (12, 1687870), (15, 1350296), (20, 1012722), (24, 843935), (30, 675148), (40, 506361), (60, 337574), (61, 332040), (120, 168787), (122, 166020), (183, 110680), (244, 83010), (305, 66408), (366, 55340), (488, 41505), (610, 33204), (732, 27670), (915, 22136), (1220, 16602), (1464, 13835), (1830, 11068), (2440, 8301), (2767, 7320), (3660, 5534)]