201780680

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{2017}}^1$

素因数の和:2130

約数の個数: 64

約数和(自身を含む): 472938480

約数和(自身を除く): 271157800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 61, 82, 122, 164, 205, 244, 305, 328, 410, 488, 610, 820, 1220, 1640, 2017, 2440, 2501, 4034, 5002, 8068, 10004, 10085, 12505, 16136, 20008, 20170, 25010, 40340, 50020, 80680, 82697, 100040, 123037, 165394, 246074, 330788, 413485, 492148, 615185, 661576, 826970, 984296, 1230370, 1653940, 2460740, 3307880, 4921480, 5044517, 10089034, 20178068, 25222585, 40356136, 50445170, 100890340, 201780680]

約数ペア:

[(1, 201780680), (2, 100890340), (4, 50445170), (5, 40356136), (8, 25222585), (10, 20178068), (20, 10089034), (40, 5044517), (41, 4921480), (61, 3307880), (82, 2460740), (122, 1653940), (164, 1230370), (205, 984296), (244, 826970), (305, 661576), (328, 615185), (410, 492148), (488, 413485), (610, 330788), (820, 246074), (1220, 165394), (1640, 123037), (2017, 100040), (2440, 82697), (2501, 80680), (4034, 50020), (5002, 40340), (8068, 25010), (10004, 20170), (10085, 20008), (12505, 16136)]