4180940

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{149}}^1$

素因数の和:242

約数の個数: 48

約数和(自身を含む): 9374400

約数和(自身を除く): 5193460

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 61, 92, 115, 122, 149, 230, 244, 298, 305, 460, 596, 610, 745, 1220, 1403, 1490, 2806, 2980, 3427, 5612, 6854, 7015, 9089, 13708, 14030, 17135, 18178, 28060, 34270, 36356, 45445, 68540, 90890, 181780, 209047, 418094, 836188, 1045235, 2090470, 4180940]

約数ペア:

[(1, 4180940), (2, 2090470), (4, 1045235), (5, 836188), (10, 418094), (20, 209047), (23, 181780), (46, 90890), (61, 68540), (92, 45445), (115, 36356), (122, 34270), (149, 28060), (230, 18178), (244, 17135), (298, 14030), (305, 13708), (460, 9089), (596, 7015), (610, 6854), (745, 5612), (1220, 3427), (1403, 2980), (1490, 2806)]