202012120

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{1613}}^1$

素因数の和:1756

約数の個数: 64

約数和(自身を含む): 474128640

約数和(自身を除く): 272116520

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 101, 124, 155, 202, 248, 310, 404, 505, 620, 808, 1010, 1240, 1613, 2020, 3131, 3226, 4040, 6262, 6452, 8065, 12524, 12904, 15655, 16130, 25048, 31310, 32260, 50003, 62620, 64520, 100006, 125240, 162913, 200012, 250015, 325826, 400024, 500030, 651652, 814565, 1000060, 1303304, 1629130, 2000120, 3258260, 5050303, 6516520, 10100606, 20201212, 25251515, 40402424, 50503030, 101006060, 202012120]

約数ペア:

[(1, 202012120), (2, 101006060), (4, 50503030), (5, 40402424), (8, 25251515), (10, 20201212), (20, 10100606), (31, 6516520), (40, 5050303), (62, 3258260), (101, 2000120), (124, 1629130), (155, 1303304), (202, 1000060), (248, 814565), (310, 651652), (404, 500030), (505, 400024), (620, 325826), (808, 250015), (1010, 200012), (1240, 162913), (1613, 125240), (2020, 100006), (3131, 64520), (3226, 62620), (4040, 50003), (6262, 32260), (6452, 31310), (8065, 25048), (12524, 16130), (12904, 15655)]