20159820

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{1009}}^1$

素因数の和:1064

約数の個数: 96

約数和(自身を含む): 64478400

約数和(自身を除く): 44318580

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 37, 45, 54, 60, 74, 90, 108, 111, 135, 148, 180, 185, 222, 270, 333, 370, 444, 540, 555, 666, 740, 999, 1009, 1110, 1332, 1665, 1998, 2018, 2220, 3027, 3330, 3996, 4036, 4995, 5045, 6054, 6660, 9081, 9990, 10090, 12108, 15135, 18162, 19980, 20180, 27243, 30270, 36324, 37333, 45405, 54486, 60540, 74666, 90810, 108972, 111999, 136215, 149332, 181620, 186665, 223998, 272430, 335997, 373330, 447996, 544860, 559995, 671994, 746660, 1007991, 1119990, 1343988, 1679985, 2015982, 2239980, 3359970, 4031964, 5039955, 6719940, 10079910, 20159820]

約数ペア:

[(1, 20159820), (2, 10079910), (3, 6719940), (4, 5039955), (5, 4031964), (6, 3359970), (9, 2239980), (10, 2015982), (12, 1679985), (15, 1343988), (18, 1119990), (20, 1007991), (27, 746660), (30, 671994), (36, 559995), (37, 544860), (45, 447996), (54, 373330), (60, 335997), (74, 272430), (90, 223998), (108, 186665), (111, 181620), (135, 149332), (148, 136215), (180, 111999), (185, 108972), (222, 90810), (270, 74666), (333, 60540), (370, 54486), (444, 45405), (540, 37333), (555, 36324), (666, 30270), (740, 27243), (999, 20180), (1009, 19980), (1110, 18162), (1332, 15135), (1665, 12108), (1998, 10090), (2018, 9990), (2220, 9081), (3027, 6660), (3330, 6054), (3996, 5045), (4036, 4995)]