905715120

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{221989}}^1$

素因数の和:222022

約数の個数: 80

約数和(自身を含む): 2972890080

約数和(自身を除く): 2067174960

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 30, 34, 40, 48, 51, 60, 68, 80, 85, 102, 120, 136, 170, 204, 240, 255, 272, 340, 408, 510, 680, 816, 1020, 1360, 2040, 4080, 221989, 443978, 665967, 887956, 1109945, 1331934, 1775912, 2219890, 2663868, 3329835, 3551824, 3773813, 4439780, 5327736, 6659670, 7547626, 8879560, 10655472, 11321439, 13319340, 15095252, 17759120, 18869065, 22642878, 26638680, 30190504, 37738130, 45285756, 53277360, 56607195, 60381008, 75476260, 90571512, 113214390, 150952520, 181143024, 226428780, 301905040, 452857560, 905715120]

約数ペア:

[(1, 905715120), (2, 452857560), (3, 301905040), (4, 226428780), (5, 181143024), (6, 150952520), (8, 113214390), (10, 90571512), (12, 75476260), (15, 60381008), (16, 56607195), (17, 53277360), (20, 45285756), (24, 37738130), (30, 30190504), (34, 26638680), (40, 22642878), (48, 18869065), (51, 17759120), (60, 15095252), (68, 13319340), (80, 11321439), (85, 10655472), (102, 8879560), (120, 7547626), (136, 6659670), (170, 5327736), (204, 4439780), (240, 3773813), (255, 3551824), (272, 3329835), (340, 2663868), (408, 2219890), (510, 1775912), (680, 1331934), (816, 1109945), (1020, 887956), (1360, 665967), (2040, 443978), (4080, 221989)]