19215580

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{1129}}^1$

素因数の和:1198

約数の個数: 48

約数和(自身を含む): 43283520

約数和(自身を除く): 24067940

約数列:

[1, 2, 4, 5, 10, 20, 23, 37, 46, 74, 92, 115, 148, 185, 230, 370, 460, 740, 851, 1129, 1702, 2258, 3404, 4255, 4516, 5645, 8510, 11290, 17020, 22580, 25967, 41773, 51934, 83546, 103868, 129835, 167092, 208865, 259670, 417730, 519340, 835460, 960779, 1921558, 3843116, 4803895, 9607790, 19215580]

約数ペア:

[(1, 19215580), (2, 9607790), (4, 4803895), (5, 3843116), (10, 1921558), (20, 960779), (23, 835460), (37, 519340), (46, 417730), (74, 259670), (92, 208865), (115, 167092), (148, 129835), (185, 103868), (230, 83546), (370, 51934), (460, 41773), (740, 25967), (851, 22580), (1129, 17020), (1702, 11290), (2258, 8510), (3404, 5645), (4255, 4516)]