19410840

素因数分解:

$2^3\times 3^5\times 5^1\times {\mathrm{1997}}^1$

素因数の和:2023

約数の個数: 96

約数和(自身を含む): 65454480

約数和(自身を除く): 46043640

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, 1997, 2430, 3240, 3994, 4860, 5991, 7988, 9720, 9985, 11982, 15976, 17973, 19970, 23964, 29955, 35946, 39940, 47928, 53919, 59910, 71892, 79880, 89865, 107838, 119820, 143784, 161757, 179730, 215676, 239640, 269595, 323514, 359460, 431352, 485271, 539190, 647028, 718920, 808785, 970542, 1078380, 1294056, 1617570, 1941084, 2156760, 2426355, 3235140, 3882168, 4852710, 6470280, 9705420, 19410840]

約数ペア:

[(1, 19410840), (2, 9705420), (3, 6470280), (4, 4852710), (5, 3882168), (6, 3235140), (8, 2426355), (9, 2156760), (10, 1941084), (12, 1617570), (15, 1294056), (18, 1078380), (20, 970542), (24, 808785), (27, 718920), (30, 647028), (36, 539190), (40, 485271), (45, 431352), (54, 359460), (60, 323514), (72, 269595), (81, 239640), (90, 215676), (108, 179730), (120, 161757), (135, 143784), (162, 119820), (180, 107838), (216, 89865), (243, 79880), (270, 71892), (324, 59910), (360, 53919), (405, 47928), (486, 39940), (540, 35946), (648, 29955), (810, 23964), (972, 19970), (1080, 17973), (1215, 15976), (1620, 11982), (1944, 9985), (1997, 9720), (2430, 7988), (3240, 5991), (3994, 4860)]