18123340

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{1289}}^1$

素因数の和:1354

約数の個数: 48

約数和(自身を含む): 41176800

約数和(自身を除く): 23053460

約数列:

[1, 2, 4, 5, 10, 19, 20, 37, 38, 74, 76, 95, 148, 185, 190, 370, 380, 703, 740, 1289, 1406, 2578, 2812, 3515, 5156, 6445, 7030, 12890, 14060, 24491, 25780, 47693, 48982, 95386, 97964, 122455, 190772, 238465, 244910, 476930, 489820, 906167, 953860, 1812334, 3624668, 4530835, 9061670, 18123340]

約数ペア:

[(1, 18123340), (2, 9061670), (4, 4530835), (5, 3624668), (10, 1812334), (19, 953860), (20, 906167), (37, 489820), (38, 476930), (74, 244910), (76, 238465), (95, 190772), (148, 122455), (185, 97964), (190, 95386), (370, 48982), (380, 47693), (703, 25780), (740, 24491), (1289, 14060), (1406, 12890), (2578, 7030), (2812, 6445), (3515, 5156)]