257520720

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{34613}}^1$

素因数の和:34660

約数の個数: 80

約数和(自身を含む): 824090112

約数和(自身を除く): 566569392

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 40, 48, 60, 62, 80, 93, 120, 124, 155, 186, 240, 248, 310, 372, 465, 496, 620, 744, 930, 1240, 1488, 1860, 2480, 3720, 7440, 34613, 69226, 103839, 138452, 173065, 207678, 276904, 346130, 415356, 519195, 553808, 692260, 830712, 1038390, 1073003, 1384520, 1661424, 2076780, 2146006, 2769040, 3219009, 4153560, 4292012, 5365015, 6438018, 8307120, 8584024, 10730030, 12876036, 16095045, 17168048, 21460060, 25752072, 32190090, 42920120, 51504144, 64380180, 85840240, 128760360, 257520720]

約数ペア:

[(1, 257520720), (2, 128760360), (3, 85840240), (4, 64380180), (5, 51504144), (6, 42920120), (8, 32190090), (10, 25752072), (12, 21460060), (15, 17168048), (16, 16095045), (20, 12876036), (24, 10730030), (30, 8584024), (31, 8307120), (40, 6438018), (48, 5365015), (60, 4292012), (62, 4153560), (80, 3219009), (93, 2769040), (120, 2146006), (124, 2076780), (155, 1661424), (186, 1384520), (240, 1073003), (248, 1038390), (310, 830712), (372, 692260), (465, 553808), (496, 519195), (620, 415356), (744, 346130), (930, 276904), (1240, 207678), (1488, 173065), (1860, 138452), (2480, 103839), (3720, 69226), (7440, 34613)]