2840860

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{349}}^1$

素因数の和:406

約数の個数: 48

約数和(自身を含む): 6703200

約数和(自身を除く): 3862340

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 37, 44, 55, 74, 110, 148, 185, 220, 349, 370, 407, 698, 740, 814, 1396, 1628, 1745, 2035, 3490, 3839, 4070, 6980, 7678, 8140, 12913, 15356, 19195, 25826, 38390, 51652, 64565, 76780, 129130, 142043, 258260, 284086, 568172, 710215, 1420430, 2840860]

約数ペア:

[(1, 2840860), (2, 1420430), (4, 710215), (5, 568172), (10, 284086), (11, 258260), (20, 142043), (22, 129130), (37, 76780), (44, 64565), (55, 51652), (74, 38390), (110, 25826), (148, 19195), (185, 15356), (220, 12913), (349, 8140), (370, 7678), (407, 6980), (698, 4070), (740, 3839), (814, 3490), (1396, 2035), (1628, 1745)]