81509985

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{2267}}^1$

素因数の和:2342

約数の個数: 48

約数和(自身を含む): 152845056

約数和(自身を除く): 71335071

約数列:

[1, 3, 5, 9, 15, 17, 45, 47, 51, 85, 141, 153, 235, 255, 423, 705, 765, 799, 2115, 2267, 2397, 3995, 6801, 7191, 11335, 11985, 20403, 34005, 35955, 38539, 102015, 106549, 115617, 192695, 319647, 346851, 532745, 578085, 958941, 1598235, 1734255, 1811333, 4794705, 5433999, 9056665, 16301997, 27169995, 81509985]

約数ペア:

[(1, 81509985), (3, 27169995), (5, 16301997), (9, 9056665), (15, 5433999), (17, 4794705), (45, 1811333), (47, 1734255), (51, 1598235), (85, 958941), (141, 578085), (153, 532745), (235, 346851), (255, 319647), (423, 192695), (705, 115617), (765, 106549), (799, 102015), (2115, 38539), (2267, 35955), (2397, 34005), (3995, 20403), (6801, 11985), (7191, 11335)]