1805320

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{373}}^1$

素因数の和:406

約数の個数: 48

約数和(自身を含む): 4476780

約数和(自身を除く): 2671460

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 121, 220, 242, 373, 440, 484, 605, 746, 968, 1210, 1492, 1865, 2420, 2984, 3730, 4103, 4840, 7460, 8206, 14920, 16412, 20515, 32824, 41030, 45133, 82060, 90266, 164120, 180532, 225665, 361064, 451330, 902660, 1805320]

約数ペア:

[(1, 1805320), (2, 902660), (4, 451330), (5, 361064), (8, 225665), (10, 180532), (11, 164120), (20, 90266), (22, 82060), (40, 45133), (44, 41030), (55, 32824), (88, 20515), (110, 16412), (121, 14920), (220, 8206), (242, 7460), (373, 4840), (440, 4103), (484, 3730), (605, 2984), (746, 2420), (968, 1865), (1210, 1492)]