161660140

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{163}}^1\times {\mathrm{2917}}^1$

素因数の和:3106

約数の個数: 48

約数和(自身を含む): 361785312

約数和(自身を除く): 200125172

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 163, 170, 326, 340, 652, 815, 1630, 2771, 2917, 3260, 5542, 5834, 11084, 11668, 13855, 14585, 27710, 29170, 49589, 55420, 58340, 99178, 198356, 247945, 475471, 495890, 950942, 991780, 1901884, 2377355, 4754710, 8083007, 9509420, 16166014, 32332028, 40415035, 80830070, 161660140]

約数ペア:

[(1, 161660140), (2, 80830070), (4, 40415035), (5, 32332028), (10, 16166014), (17, 9509420), (20, 8083007), (34, 4754710), (68, 2377355), (85, 1901884), (163, 991780), (170, 950942), (326, 495890), (340, 475471), (652, 247945), (815, 198356), (1630, 99178), (2771, 58340), (2917, 55420), (3260, 49589), (5542, 29170), (5834, 27710), (11084, 14585), (11668, 13855)]