23399955

素因数分解:

$3^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1$

素因数の和:225

約数の個数: 64

約数和(自身を含む): 44352000

約数和(自身を除く): 20952045

約数列:

[1, 3, 5, 9, 15, 27, 29, 43, 45, 87, 129, 135, 139, 145, 215, 261, 387, 417, 435, 645, 695, 783, 1161, 1247, 1251, 1305, 1935, 2085, 3741, 3753, 3915, 4031, 5805, 5977, 6235, 6255, 11223, 12093, 17931, 18705, 18765, 20155, 29885, 33669, 36279, 53793, 56115, 60465, 89655, 108837, 161379, 168345, 173333, 181395, 268965, 519999, 544185, 806895, 866665, 1559997, 2599995, 4679991, 7799985, 23399955]

約数ペア:

[(1, 23399955), (3, 7799985), (5, 4679991), (9, 2599995), (15, 1559997), (27, 866665), (29, 806895), (43, 544185), (45, 519999), (87, 268965), (129, 181395), (135, 173333), (139, 168345), (145, 161379), (215, 108837), (261, 89655), (387, 60465), (417, 56115), (435, 53793), (645, 36279), (695, 33669), (783, 29885), (1161, 20155), (1247, 18765), (1251, 18705), (1305, 17931), (1935, 12093), (2085, 11223), (3741, 6255), (3753, 6235), (3915, 5977), (4031, 5805)]