20319660

素因数分解:

$2^2\times 3^5\times 5^1\times {\mathrm{37}}^1\times {\mathrm{113}}^1$

素因数の和:174

約数の個数: 144

約数和(自身を含む): 66227616

約数和(自身を除く): 45907956

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 37, 45, 54, 60, 74, 81, 90, 108, 111, 113, 135, 148, 162, 180, 185, 222, 226, 243, 270, 324, 333, 339, 370, 405, 444, 452, 486, 540, 555, 565, 666, 678, 740, 810, 972, 999, 1017, 1110, 1130, 1215, 1332, 1356, 1620, 1665, 1695, 1998, 2034, 2220, 2260, 2430, 2997, 3051, 3330, 3390, 3996, 4068, 4181, 4860, 4995, 5085, 5994, 6102, 6660, 6780, 8362, 8991, 9153, 9990, 10170, 11988, 12204, 12543, 14985, 15255, 16724, 17982, 18306, 19980, 20340, 20905, 25086, 27459, 29970, 30510, 35964, 36612, 37629, 41810, 44955, 45765, 50172, 54918, 59940, 61020, 62715, 75258, 83620, 89910, 91530, 109836, 112887, 125430, 137295, 150516, 179820, 183060, 188145, 225774, 250860, 274590, 338661, 376290, 451548, 549180, 564435, 677322, 752580, 1015983, 1128870, 1354644, 1693305, 2031966, 2257740, 3386610, 4063932, 5079915, 6773220, 10159830, 20319660]

約数ペア:

[(1, 20319660), (2, 10159830), (3, 6773220), (4, 5079915), (5, 4063932), (6, 3386610), (9, 2257740), (10, 2031966), (12, 1693305), (15, 1354644), (18, 1128870), (20, 1015983), (27, 752580), (30, 677322), (36, 564435), (37, 549180), (45, 451548), (54, 376290), (60, 338661), (74, 274590), (81, 250860), (90, 225774), (108, 188145), (111, 183060), (113, 179820), (135, 150516), (148, 137295), (162, 125430), (180, 112887), (185, 109836), (222, 91530), (226, 89910), (243, 83620), (270, 75258), (324, 62715), (333, 61020), (339, 59940), (370, 54918), (405, 50172), (444, 45765), (452, 44955), (486, 41810), (540, 37629), (555, 36612), (565, 35964), (666, 30510), (678, 29970), (740, 27459), (810, 25086), (972, 20905), (999, 20340), (1017, 19980), (1110, 18306), (1130, 17982), (1215, 16724), (1332, 15255), (1356, 14985), (1620, 12543), (1665, 12204), (1695, 11988), (1998, 10170), (2034, 9990), (2220, 9153), (2260, 8991), (2430, 8362), (2997, 6780), (3051, 6660), (3330, 6102), (3390, 5994), (3996, 5085), (4068, 4995), (4181, 4860)]