18776840

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{521}}^1$

素因数の和:602

約数の個数: 64

約数和(自身を含む): 45664560

約数和(自身を除く): 26887720

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 53, 68, 85, 106, 136, 170, 212, 265, 340, 424, 521, 530, 680, 901, 1042, 1060, 1802, 2084, 2120, 2605, 3604, 4168, 4505, 5210, 7208, 8857, 9010, 10420, 17714, 18020, 20840, 27613, 35428, 36040, 44285, 55226, 70856, 88570, 110452, 138065, 177140, 220904, 276130, 354280, 469421, 552260, 938842, 1104520, 1877684, 2347105, 3755368, 4694210, 9388420, 18776840]

約数ペア:

[(1, 18776840), (2, 9388420), (4, 4694210), (5, 3755368), (8, 2347105), (10, 1877684), (17, 1104520), (20, 938842), (34, 552260), (40, 469421), (53, 354280), (68, 276130), (85, 220904), (106, 177140), (136, 138065), (170, 110452), (212, 88570), (265, 70856), (340, 55226), (424, 44285), (521, 36040), (530, 35428), (680, 27613), (901, 20840), (1042, 18020), (1060, 17714), (1802, 10420), (2084, 9010), (2120, 8857), (2605, 7208), (3604, 5210), (4168, 4505)]