81219120

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{338413}}^1$

素因数の和:338429

約数の個数: 40

約数和(自身を含む): 251780016

約数和(自身を除く): 170560896

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 338413, 676826, 1015239, 1353652, 1692065, 2030478, 2707304, 3384130, 4060956, 5076195, 5414608, 6768260, 8121912, 10152390, 13536520, 16243824, 20304780, 27073040, 40609560, 81219120]

約数ペア:

[(1, 81219120), (2, 40609560), (3, 27073040), (4, 20304780), (5, 16243824), (6, 13536520), (8, 10152390), (10, 8121912), (12, 6768260), (15, 5414608), (16, 5076195), (20, 4060956), (24, 3384130), (30, 2707304), (40, 2030478), (48, 1692065), (60, 1353652), (80, 1015239), (120, 676826), (240, 338413)]