12789705

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{251}}^1$

素因数の和:381

約数の個数: 32

約数和(自身を含む): 21288960

約数和(自身を除く): 8499255

約数列:

[1, 3, 5, 15, 43, 79, 129, 215, 237, 251, 395, 645, 753, 1185, 1255, 3397, 3765, 10191, 10793, 16985, 19829, 32379, 50955, 53965, 59487, 99145, 161895, 297435, 852647, 2557941, 4263235, 12789705]

約数ペア:

[(1, 12789705), (3, 4263235), (5, 2557941), (15, 852647), (43, 297435), (79, 161895), (129, 99145), (215, 59487), (237, 53965), (251, 50955), (395, 32379), (645, 19829), (753, 16985), (1185, 10793), (1255, 10191), (3397, 3765)]