19922260

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{509}}^1$

素因数の和:640

約数の個数: 48

約数和(自身を含む): 44553600

約数和(自身を除く): 24631340

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 103, 190, 206, 380, 412, 509, 515, 1018, 1030, 1957, 2036, 2060, 2545, 3914, 5090, 7828, 9671, 9785, 10180, 19342, 19570, 38684, 39140, 48355, 52427, 96710, 104854, 193420, 209708, 262135, 524270, 996113, 1048540, 1992226, 3984452, 4980565, 9961130, 19922260]

約数ペア:

[(1, 19922260), (2, 9961130), (4, 4980565), (5, 3984452), (10, 1992226), (19, 1048540), (20, 996113), (38, 524270), (76, 262135), (95, 209708), (103, 193420), (190, 104854), (206, 96710), (380, 52427), (412, 48355), (509, 39140), (515, 38684), (1018, 19570), (1030, 19342), (1957, 10180), (2036, 9785), (2060, 9671), (2545, 7828), (3914, 5090)]