178511420

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{83}}^1\times {\mathrm{2029}}^1$

素因数の和:2174

約数の個数: 48

約数和(自身を含む): 386739360

約数和(自身を除く): 208227940

約数列:

[1, 2, 4, 5, 10, 20, 53, 83, 106, 166, 212, 265, 332, 415, 530, 830, 1060, 1660, 2029, 4058, 4399, 8116, 8798, 10145, 17596, 20290, 21995, 40580, 43990, 87980, 107537, 168407, 215074, 336814, 430148, 537685, 673628, 842035, 1075370, 1684070, 2150740, 3368140, 8925571, 17851142, 35702284, 44627855, 89255710, 178511420]

約数ペア:

[(1, 178511420), (2, 89255710), (4, 44627855), (5, 35702284), (10, 17851142), (20, 8925571), (53, 3368140), (83, 2150740), (106, 1684070), (166, 1075370), (212, 842035), (265, 673628), (332, 537685), (415, 430148), (530, 336814), (830, 215074), (1060, 168407), (1660, 107537), (2029, 87980), (4058, 43990), (4399, 40580), (8116, 21995), (8798, 20290), (10145, 17596)]