80998320

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{1997}}^1$

素因数の和:2039

約数の個数: 120

約数和(自身を含む): 272031696

約数和(自身を除く): 191033376

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 65, 78, 80, 104, 120, 130, 156, 169, 195, 208, 240, 260, 312, 338, 390, 507, 520, 624, 676, 780, 845, 1014, 1040, 1352, 1560, 1690, 1997, 2028, 2535, 2704, 3120, 3380, 3994, 4056, 5070, 5991, 6760, 7988, 8112, 9985, 10140, 11982, 13520, 15976, 19970, 20280, 23964, 25961, 29955, 31952, 39940, 40560, 47928, 51922, 59910, 77883, 79880, 95856, 103844, 119820, 129805, 155766, 159760, 207688, 239640, 259610, 311532, 337493, 389415, 415376, 479280, 519220, 623064, 674986, 778830, 1012479, 1038440, 1246128, 1349972, 1557660, 1687465, 2024958, 2076880, 2699944, 3115320, 3374930, 4049916, 5062395, 5399888, 6230640, 6749860, 8099832, 10124790, 13499720, 16199664, 20249580, 26999440, 40499160, 80998320]

約数ペア:

[(1, 80998320), (2, 40499160), (3, 26999440), (4, 20249580), (5, 16199664), (6, 13499720), (8, 10124790), (10, 8099832), (12, 6749860), (13, 6230640), (15, 5399888), (16, 5062395), (20, 4049916), (24, 3374930), (26, 3115320), (30, 2699944), (39, 2076880), (40, 2024958), (48, 1687465), (52, 1557660), (60, 1349972), (65, 1246128), (78, 1038440), (80, 1012479), (104, 778830), (120, 674986), (130, 623064), (156, 519220), (169, 479280), (195, 415376), (208, 389415), (240, 337493), (260, 311532), (312, 259610), (338, 239640), (390, 207688), (507, 159760), (520, 155766), (624, 129805), (676, 119820), (780, 103844), (845, 95856), (1014, 79880), (1040, 77883), (1352, 59910), (1560, 51922), (1690, 47928), (1997, 40560), (2028, 39940), (2535, 31952), (2704, 29955), (3120, 25961), (3380, 23964), (3994, 20280), (4056, 19970), (5070, 15976), (5991, 13520), (6760, 11982), (7988, 10140), (8112, 9985)]