18646880

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{16649}}^1$

素因数の和:16671

約数の個数: 48

約数和(自身を含む): 50349600

約数和(自身を除く): 31702720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 16649, 33298, 66596, 83245, 116543, 133192, 166490, 233086, 266384, 332980, 466172, 532768, 582715, 665960, 932344, 1165430, 1331920, 1864688, 2330860, 2663840, 3729376, 4661720, 9323440, 18646880]

約数ペア:

[(1, 18646880), (2, 9323440), (4, 4661720), (5, 3729376), (7, 2663840), (8, 2330860), (10, 1864688), (14, 1331920), (16, 1165430), (20, 932344), (28, 665960), (32, 582715), (35, 532768), (40, 466172), (56, 332980), (70, 266384), (80, 233086), (112, 166490), (140, 133192), (160, 116543), (224, 83245), (280, 66596), (560, 33298), (1120, 16649)]