21908760

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{73}}^1$

素因数の和:189

約数の個数: 128

約数和(自身を含む): 69370560

約数和(自身を除く): 47461800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 41, 60, 61, 73, 82, 120, 122, 123, 146, 164, 183, 205, 219, 244, 246, 292, 305, 328, 365, 366, 410, 438, 488, 492, 584, 610, 615, 730, 732, 820, 876, 915, 984, 1095, 1220, 1230, 1460, 1464, 1640, 1752, 1830, 2190, 2440, 2460, 2501, 2920, 2993, 3660, 4380, 4453, 4920, 5002, 5986, 7320, 7503, 8760, 8906, 8979, 10004, 11972, 12505, 13359, 14965, 15006, 17812, 17958, 20008, 22265, 23944, 25010, 26718, 29930, 30012, 35624, 35916, 37515, 44530, 44895, 50020, 53436, 59860, 60024, 66795, 71832, 75030, 89060, 89790, 100040, 106872, 119720, 133590, 150060, 178120, 179580, 182573, 267180, 300120, 359160, 365146, 534360, 547719, 730292, 912865, 1095438, 1460584, 1825730, 2190876, 2738595, 3651460, 4381752, 5477190, 7302920, 10954380, 21908760]

約数ペア:

[(1, 21908760), (2, 10954380), (3, 7302920), (4, 5477190), (5, 4381752), (6, 3651460), (8, 2738595), (10, 2190876), (12, 1825730), (15, 1460584), (20, 1095438), (24, 912865), (30, 730292), (40, 547719), (41, 534360), (60, 365146), (61, 359160), (73, 300120), (82, 267180), (120, 182573), (122, 179580), (123, 178120), (146, 150060), (164, 133590), (183, 119720), (205, 106872), (219, 100040), (244, 89790), (246, 89060), (292, 75030), (305, 71832), (328, 66795), (365, 60024), (366, 59860), (410, 53436), (438, 50020), (488, 44895), (492, 44530), (584, 37515), (610, 35916), (615, 35624), (730, 30012), (732, 29930), (820, 26718), (876, 25010), (915, 23944), (984, 22265), (1095, 20008), (1220, 17958), (1230, 17812), (1460, 15006), (1464, 14965), (1640, 13359), (1752, 12505), (1830, 11972), (2190, 10004), (2440, 8979), (2460, 8906), (2501, 8760), (2920, 7503), (2993, 7320), (3660, 5986), (4380, 5002), (4453, 4920)]