17418820

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{1993}}^1$

素因数の和:2044

約数の個数: 48

約数和(自身を含む): 40199040

約数和(自身を除く): 22780220

約数列:

[1, 2, 4, 5, 10, 19, 20, 23, 38, 46, 76, 92, 95, 115, 190, 230, 380, 437, 460, 874, 1748, 1993, 2185, 3986, 4370, 7972, 8740, 9965, 19930, 37867, 39860, 45839, 75734, 91678, 151468, 183356, 189335, 229195, 378670, 458390, 757340, 870941, 916780, 1741882, 3483764, 4354705, 8709410, 17418820]

約数ペア:

[(1, 17418820), (2, 8709410), (4, 4354705), (5, 3483764), (10, 1741882), (19, 916780), (20, 870941), (23, 757340), (38, 458390), (46, 378670), (76, 229195), (92, 189335), (95, 183356), (115, 151468), (190, 91678), (230, 75734), (380, 45839), (437, 39860), (460, 37867), (874, 19930), (1748, 9965), (1993, 8740), (2185, 7972), (3986, 4370)]