81705315

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{13931}}^1$

素因数の和:13979

約数の個数: 32

約数和(自身を含む): 144446976

約数和(自身を除く): 62741661

約数列:

[1, 3, 5, 15, 17, 23, 51, 69, 85, 115, 255, 345, 391, 1173, 1955, 5865, 13931, 41793, 69655, 208965, 236827, 320413, 710481, 961239, 1184135, 1602065, 3552405, 4806195, 5447021, 16341063, 27235105, 81705315]

約数ペア:

[(1, 81705315), (3, 27235105), (5, 16341063), (15, 5447021), (17, 4806195), (23, 3552405), (51, 1602065), (69, 1184135), (85, 961239), (115, 710481), (255, 320413), (345, 236827), (391, 208965), (1173, 69655), (1955, 41793), (5865, 13931)]