2980460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{349}}^1$

素因数の和:426

約数の個数: 48

約数和(自身を含む): 7291200

約数和(自身を除く): 4310740

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 61, 70, 122, 140, 244, 305, 349, 427, 610, 698, 854, 1220, 1396, 1708, 1745, 2135, 2443, 3490, 4270, 4886, 6980, 8540, 9772, 12215, 21289, 24430, 42578, 48860, 85156, 106445, 149023, 212890, 298046, 425780, 596092, 745115, 1490230, 2980460]

約数ペア:

[(1, 2980460), (2, 1490230), (4, 745115), (5, 596092), (7, 425780), (10, 298046), (14, 212890), (20, 149023), (28, 106445), (35, 85156), (61, 48860), (70, 42578), (122, 24430), (140, 21289), (244, 12215), (305, 9772), (349, 8540), (427, 6980), (610, 4886), (698, 4270), (854, 3490), (1220, 2443), (1396, 2135), (1708, 1745)]