1861720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{109}}^1$

素因数の和:188

約数の個数: 64

約数和(自身を含む): 4910400

約数和(自身を除く): 3048680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 61, 70, 109, 122, 140, 218, 244, 280, 305, 427, 436, 488, 545, 610, 763, 854, 872, 1090, 1220, 1526, 1708, 2135, 2180, 2440, 3052, 3416, 3815, 4270, 4360, 6104, 6649, 7630, 8540, 13298, 15260, 17080, 26596, 30520, 33245, 46543, 53192, 66490, 93086, 132980, 186172, 232715, 265960, 372344, 465430, 930860, 1861720]

約数ペア:

[(1, 1861720), (2, 930860), (4, 465430), (5, 372344), (7, 265960), (8, 232715), (10, 186172), (14, 132980), (20, 93086), (28, 66490), (35, 53192), (40, 46543), (56, 33245), (61, 30520), (70, 26596), (109, 17080), (122, 15260), (140, 13298), (218, 8540), (244, 7630), (280, 6649), (305, 6104), (427, 4360), (436, 4270), (488, 3815), (545, 3416), (610, 3052), (763, 2440), (854, 2180), (872, 2135), (1090, 1708), (1220, 1526)]