81331250

素因数分解:

$2^1\times 5^5\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2$

素因数の和:71

約数の個数: 144

約数和(自身を含む): 205861824

約数和(自身を除く): 124530574

約数列:

[1, 2, 5, 7, 10, 11, 13, 14, 22, 25, 26, 35, 50, 55, 65, 70, 77, 91, 110, 125, 130, 143, 154, 169, 175, 182, 250, 275, 286, 325, 338, 350, 385, 455, 550, 625, 650, 715, 770, 845, 875, 910, 1001, 1183, 1250, 1375, 1430, 1625, 1690, 1750, 1859, 1925, 2002, 2275, 2366, 2750, 3125, 3250, 3575, 3718, 3850, 4225, 4375, 4550, 5005, 5915, 6250, 6875, 7150, 8125, 8450, 8750, 9295, 9625, 10010, 11375, 11830, 13013, 13750, 16250, 17875, 18590, 19250, 21125, 21875, 22750, 25025, 26026, 29575, 34375, 35750, 40625, 42250, 43750, 46475, 48125, 50050, 56875, 59150, 65065, 68750, 81250, 89375, 92950, 96250, 105625, 113750, 125125, 130130, 147875, 178750, 211250, 232375, 240625, 250250, 284375, 295750, 325325, 446875, 464750, 481250, 528125, 568750, 625625, 650650, 739375, 893750, 1056250, 1161875, 1251250, 1478750, 1626625, 2323750, 3128125, 3253250, 3696875, 5809375, 6256250, 7393750, 8133125, 11618750, 16266250, 40665625, 81331250]

約数ペア:

[(1, 81331250), (2, 40665625), (5, 16266250), (7, 11618750), (10, 8133125), (11, 7393750), (13, 6256250), (14, 5809375), (22, 3696875), (25, 3253250), (26, 3128125), (35, 2323750), (50, 1626625), (55, 1478750), (65, 1251250), (70, 1161875), (77, 1056250), (91, 893750), (110, 739375), (125, 650650), (130, 625625), (143, 568750), (154, 528125), (169, 481250), (175, 464750), (182, 446875), (250, 325325), (275, 295750), (286, 284375), (325, 250250), (338, 240625), (350, 232375), (385, 211250), (455, 178750), (550, 147875), (625, 130130), (650, 125125), (715, 113750), (770, 105625), (845, 96250), (875, 92950), (910, 89375), (1001, 81250), (1183, 68750), (1250, 65065), (1375, 59150), (1430, 56875), (1625, 50050), (1690, 48125), (1750, 46475), (1859, 43750), (1925, 42250), (2002, 40625), (2275, 35750), (2366, 34375), (2750, 29575), (3125, 26026), (3250, 25025), (3575, 22750), (3718, 21875), (3850, 21125), (4225, 19250), (4375, 18590), (4550, 17875), (5005, 16250), (5915, 13750), (6250, 13013), (6875, 11830), (7150, 11375), (8125, 10010), (8450, 9625), (8750, 9295)]