128628500

素因数分解:

$2^2\times 5^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{257}}^1$

素因数の和:307

約数の個数: 192

約数和(自身を含む): 378653184

約数和(自身を除く): 250024684

約数列:

[1, 2, 4, 5, 7, 10, 11, 13, 14, 20, 22, 25, 26, 28, 35, 44, 50, 52, 55, 65, 70, 77, 91, 100, 110, 125, 130, 140, 143, 154, 175, 182, 220, 250, 257, 260, 275, 286, 308, 325, 350, 364, 385, 455, 500, 514, 550, 572, 650, 700, 715, 770, 875, 910, 1001, 1028, 1100, 1285, 1300, 1375, 1430, 1540, 1625, 1750, 1799, 1820, 1925, 2002, 2275, 2570, 2750, 2827, 2860, 3250, 3341, 3500, 3575, 3598, 3850, 4004, 4550, 5005, 5140, 5500, 5654, 6425, 6500, 6682, 7150, 7196, 7700, 8995, 9100, 9625, 10010, 11308, 11375, 12850, 13364, 14135, 14300, 16705, 17875, 17990, 19250, 19789, 20020, 22750, 23387, 25025, 25700, 28270, 32125, 33410, 35750, 35980, 36751, 38500, 39578, 44975, 45500, 46774, 50050, 56540, 64250, 66820, 70675, 71500, 73502, 79156, 83525, 89950, 93548, 98945, 100100, 116935, 125125, 128500, 141350, 147004, 167050, 179900, 183755, 197890, 224875, 233870, 250250, 257257, 282700, 334100, 353375, 367510, 395780, 417625, 449750, 467740, 494725, 500500, 514514, 584675, 706750, 735020, 835250, 899500, 918775, 989450, 1029028, 1169350, 1286285, 1413500, 1670500, 1837550, 1978900, 2338700, 2473625, 2572570, 2923375, 3675100, 4593875, 4947250, 5145140, 5846750, 6431425, 9187750, 9894500, 11693500, 12862850, 18375500, 25725700, 32157125, 64314250, 128628500]

約数ペア:

[(1, 128628500), (2, 64314250), (4, 32157125), (5, 25725700), (7, 18375500), (10, 12862850), (11, 11693500), (13, 9894500), (14, 9187750), (20, 6431425), (22, 5846750), (25, 5145140), (26, 4947250), (28, 4593875), (35, 3675100), (44, 2923375), (50, 2572570), (52, 2473625), (55, 2338700), (65, 1978900), (70, 1837550), (77, 1670500), (91, 1413500), (100, 1286285), (110, 1169350), (125, 1029028), (130, 989450), (140, 918775), (143, 899500), (154, 835250), (175, 735020), (182, 706750), (220, 584675), (250, 514514), (257, 500500), (260, 494725), (275, 467740), (286, 449750), (308, 417625), (325, 395780), (350, 367510), (364, 353375), (385, 334100), (455, 282700), (500, 257257), (514, 250250), (550, 233870), (572, 224875), (650, 197890), (700, 183755), (715, 179900), (770, 167050), (875, 147004), (910, 141350), (1001, 128500), (1028, 125125), (1100, 116935), (1285, 100100), (1300, 98945), (1375, 93548), (1430, 89950), (1540, 83525), (1625, 79156), (1750, 73502), (1799, 71500), (1820, 70675), (1925, 66820), (2002, 64250), (2275, 56540), (2570, 50050), (2750, 46774), (2827, 45500), (2860, 44975), (3250, 39578), (3341, 38500), (3500, 36751), (3575, 35980), (3598, 35750), (3850, 33410), (4004, 32125), (4550, 28270), (5005, 25700), (5140, 25025), (5500, 23387), (5654, 22750), (6425, 20020), (6500, 19789), (6682, 19250), (7150, 17990), (7196, 17875), (7700, 16705), (8995, 14300), (9100, 14135), (9625, 13364), (10010, 12850), (11308, 11375)]