8193980

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{379}}^1$

素因数の和:458

約数の個数: 48

約数和(自身を含む): 18385920

約数和(自身を除く): 10191940

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 47, 92, 94, 115, 188, 230, 235, 379, 460, 470, 758, 940, 1081, 1516, 1895, 2162, 3790, 4324, 5405, 7580, 8717, 10810, 17434, 17813, 21620, 34868, 35626, 43585, 71252, 87170, 89065, 174340, 178130, 356260, 409699, 819398, 1638796, 2048495, 4096990, 8193980]

約数ペア:

[(1, 8193980), (2, 4096990), (4, 2048495), (5, 1638796), (10, 819398), (20, 409699), (23, 356260), (46, 178130), (47, 174340), (92, 89065), (94, 87170), (115, 71252), (188, 43585), (230, 35626), (235, 34868), (379, 21620), (460, 17813), (470, 17434), (758, 10810), (940, 8717), (1081, 7580), (1516, 5405), (1895, 4324), (2162, 3790)]