223572015

素因数分解:

$3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{1597}}^1$

素因数の和:1689

約数の個数: 64

約数和(自身を含む): 428008320

約数和(自身を除く): 204436305

約数列:

[1, 3, 5, 9, 15, 17, 27, 45, 51, 61, 85, 135, 153, 183, 255, 305, 459, 549, 765, 915, 1037, 1597, 1647, 2295, 2745, 3111, 4791, 5185, 7985, 8235, 9333, 14373, 15555, 23955, 27149, 27999, 43119, 46665, 71865, 81447, 97417, 135745, 139995, 215595, 244341, 292251, 407235, 487085, 733023, 876753, 1221705, 1461255, 1656089, 2630259, 3665115, 4383765, 4968267, 8280445, 13151295, 14904801, 24841335, 44714403, 74524005, 223572015]

約数ペア:

[(1, 223572015), (3, 74524005), (5, 44714403), (9, 24841335), (15, 14904801), (17, 13151295), (27, 8280445), (45, 4968267), (51, 4383765), (61, 3665115), (85, 2630259), (135, 1656089), (153, 1461255), (183, 1221705), (255, 876753), (305, 733023), (459, 487085), (549, 407235), (765, 292251), (915, 244341), (1037, 215595), (1597, 139995), (1647, 135745), (2295, 97417), (2745, 81447), (3111, 71865), (4791, 46665), (5185, 43119), (7985, 27999), (8235, 27149), (9333, 23955), (14373, 15555)]