291208520

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{316531}}^1$

素因数の和:316565

約数の個数: 32

約数和(自身を含む): 683709120

約数和(自身を除く): 392500600

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 316531, 633062, 1266124, 1582655, 2532248, 3165310, 6330620, 7280213, 12661240, 14560426, 29120852, 36401065, 58241704, 72802130, 145604260, 291208520]

約数ペア:

[(1, 291208520), (2, 145604260), (4, 72802130), (5, 58241704), (8, 36401065), (10, 29120852), (20, 14560426), (23, 12661240), (40, 7280213), (46, 6330620), (92, 3165310), (115, 2532248), (184, 1582655), (230, 1266124), (460, 633062), (920, 316531)]