121206280

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{103}}^1$

素因数の和:231

約数の個数: 128

約数和(自身を含む): 310302720

約数和(自身を除く): 189096440

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 31, 40, 52, 62, 65, 73, 103, 104, 124, 130, 146, 155, 206, 248, 260, 292, 310, 365, 403, 412, 515, 520, 584, 620, 730, 806, 824, 949, 1030, 1240, 1339, 1460, 1612, 1898, 2015, 2060, 2263, 2678, 2920, 3193, 3224, 3796, 4030, 4120, 4526, 4745, 5356, 6386, 6695, 7519, 7592, 8060, 9052, 9490, 10712, 11315, 12772, 13390, 15038, 15965, 16120, 18104, 18980, 22630, 25544, 26780, 29419, 30076, 31930, 37595, 37960, 41509, 45260, 53560, 58838, 60152, 63860, 75190, 83018, 90520, 97747, 117676, 127720, 147095, 150380, 166036, 195494, 207545, 233089, 235352, 294190, 300760, 332072, 390988, 415090, 466178, 488735, 588380, 781976, 830180, 932356, 977470, 1165445, 1176760, 1660360, 1864712, 1954940, 2330890, 3030157, 3909880, 4661780, 6060314, 9323560, 12120628, 15150785, 24241256, 30301570, 60603140, 121206280]

約数ペア:

[(1, 121206280), (2, 60603140), (4, 30301570), (5, 24241256), (8, 15150785), (10, 12120628), (13, 9323560), (20, 6060314), (26, 4661780), (31, 3909880), (40, 3030157), (52, 2330890), (62, 1954940), (65, 1864712), (73, 1660360), (103, 1176760), (104, 1165445), (124, 977470), (130, 932356), (146, 830180), (155, 781976), (206, 588380), (248, 488735), (260, 466178), (292, 415090), (310, 390988), (365, 332072), (403, 300760), (412, 294190), (515, 235352), (520, 233089), (584, 207545), (620, 195494), (730, 166036), (806, 150380), (824, 147095), (949, 127720), (1030, 117676), (1240, 97747), (1339, 90520), (1460, 83018), (1612, 75190), (1898, 63860), (2015, 60152), (2060, 58838), (2263, 53560), (2678, 45260), (2920, 41509), (3193, 37960), (3224, 37595), (3796, 31930), (4030, 30076), (4120, 29419), (4526, 26780), (4745, 25544), (5356, 22630), (6386, 18980), (6695, 18104), (7519, 16120), (7592, 15965), (8060, 15038), (9052, 13390), (9490, 12772), (10712, 11315)]