8980420

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{433}}^1$

素因数の和:520

約数の個数: 48

約数和(自身を含む): 20342448

約数和(自身を除く): 11362028

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 61, 68, 85, 122, 170, 244, 305, 340, 433, 610, 866, 1037, 1220, 1732, 2074, 2165, 4148, 4330, 5185, 7361, 8660, 10370, 14722, 20740, 26413, 29444, 36805, 52826, 73610, 105652, 132065, 147220, 264130, 449021, 528260, 898042, 1796084, 2245105, 4490210, 8980420]

約数ペア:

[(1, 8980420), (2, 4490210), (4, 2245105), (5, 1796084), (10, 898042), (17, 528260), (20, 449021), (34, 264130), (61, 147220), (68, 132065), (85, 105652), (122, 73610), (170, 52826), (244, 36805), (305, 29444), (340, 26413), (433, 20740), (610, 14722), (866, 10370), (1037, 8660), (1220, 7361), (1732, 5185), (2074, 4330), (2165, 4148)]