16880120

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{13613}}^1$

素因数の和:13655

約数の個数: 32

約数和(自身を含む): 39208320

約数和(自身を除く): 22328200

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 13613, 27226, 54452, 68065, 108904, 136130, 272260, 422003, 544520, 844006, 1688012, 2110015, 3376024, 4220030, 8440060, 16880120]

約数ペア:

[(1, 16880120), (2, 8440060), (4, 4220030), (5, 3376024), (8, 2110015), (10, 1688012), (20, 844006), (31, 544520), (40, 422003), (62, 272260), (124, 136130), (155, 108904), (248, 68065), (310, 54452), (620, 27226), (1240, 13613)]