18345340

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{1907}}^1$

素因数の和:1966

約数の個数: 48

約数和(自身を含む): 42632352

約数和(自身を除く): 24287012

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 37, 52, 65, 74, 130, 148, 185, 260, 370, 481, 740, 962, 1907, 1924, 2405, 3814, 4810, 7628, 9535, 9620, 19070, 24791, 38140, 49582, 70559, 99164, 123955, 141118, 247910, 282236, 352795, 495820, 705590, 917267, 1411180, 1834534, 3669068, 4586335, 9172670, 18345340]

約数ペア:

[(1, 18345340), (2, 9172670), (4, 4586335), (5, 3669068), (10, 1834534), (13, 1411180), (20, 917267), (26, 705590), (37, 495820), (52, 352795), (65, 282236), (74, 247910), (130, 141118), (148, 123955), (185, 99164), (260, 70559), (370, 49582), (481, 38140), (740, 24791), (962, 19070), (1907, 9620), (1924, 9535), (2405, 7628), (3814, 4810)]