19430280

素因数分解:

$2^3\times 3^5\times 5^1\times {\mathrm{1999}}^1$

素因数の和:2025

約数の個数: 96

約数和(自身を含む): 65520000

約数和(自身を除く): 46089720

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 81, 90, 108, 120, 135, 162, 180, 216, 243, 270, 324, 360, 405, 486, 540, 648, 810, 972, 1080, 1215, 1620, 1944, 1999, 2430, 3240, 3998, 4860, 5997, 7996, 9720, 9995, 11994, 15992, 17991, 19990, 23988, 29985, 35982, 39980, 47976, 53973, 59970, 71964, 79960, 89955, 107946, 119940, 143928, 161919, 179910, 215892, 239880, 269865, 323838, 359820, 431784, 485757, 539730, 647676, 719640, 809595, 971514, 1079460, 1295352, 1619190, 1943028, 2158920, 2428785, 3238380, 3886056, 4857570, 6476760, 9715140, 19430280]

約数ペア:

[(1, 19430280), (2, 9715140), (3, 6476760), (4, 4857570), (5, 3886056), (6, 3238380), (8, 2428785), (9, 2158920), (10, 1943028), (12, 1619190), (15, 1295352), (18, 1079460), (20, 971514), (24, 809595), (27, 719640), (30, 647676), (36, 539730), (40, 485757), (45, 431784), (54, 359820), (60, 323838), (72, 269865), (81, 239880), (90, 215892), (108, 179910), (120, 161919), (135, 143928), (162, 119940), (180, 107946), (216, 89955), (243, 79960), (270, 71964), (324, 59970), (360, 53973), (405, 47976), (486, 39980), (540, 35982), (648, 29985), (810, 23988), (972, 19990), (1080, 17991), (1215, 15992), (1620, 11994), (1944, 9995), (1999, 9720), (2430, 7996), (3240, 5997), (3998, 4860)]