321571250

素因数分解:

$2^1\times 5^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{257}}^1$

素因数の和:310

約数の個数: 160

約数和(自身を含む): 812439936

約数和(自身を除く): 490868686

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, 175, 182, 250, 257, 275, 286, 325, 350, 385, 455, 514, 550, 625, 650, 715, 770, 875, 910, 1001, 1250, 1285, 1375, 1430, 1625, 1750, 1799, 1925, 2002, 2275, 2570, 2750, 2827, 3250, 3341, 3575, 3598, 3850, 4375, 4550, 5005, 5654, 6425, 6682, 6875, 7150, 8125, 8750, 8995, 9625, 10010, 11375, 12850, 13750, 14135, 16250, 16705, 17875, 17990, 19250, 19789, 22750, 23387, 25025, 28270, 32125, 33410, 35750, 36751, 39578, 44975, 46774, 48125, 50050, 56875, 64250, 70675, 73502, 83525, 89375, 89950, 96250, 98945, 113750, 116935, 125125, 141350, 160625, 167050, 178750, 183755, 197890, 224875, 233870, 250250, 257257, 321250, 353375, 367510, 417625, 449750, 494725, 514514, 584675, 625625, 706750, 835250, 918775, 989450, 1124375, 1169350, 1251250, 1286285, 1766875, 1837550, 2088125, 2248750, 2473625, 2572570, 2923375, 3533750, 4176250, 4593875, 4947250, 5846750, 6431425, 9187750, 12368125, 12862850, 14616875, 22969375, 24736250, 29233750, 32157125, 45938750, 64314250, 160785625, 321571250]

約数ペア:

[(1, 321571250), (2, 160785625), (5, 64314250), (7, 45938750), (10, 32157125), (11, 29233750), (13, 24736250), (14, 22969375), (22, 14616875), (25, 12862850), (26, 12368125), (35, 9187750), (50, 6431425), (55, 5846750), (65, 4947250), (70, 4593875), (77, 4176250), (91, 3533750), (110, 2923375), (125, 2572570), (130, 2473625), (143, 2248750), (154, 2088125), (175, 1837550), (182, 1766875), (250, 1286285), (257, 1251250), (275, 1169350), (286, 1124375), (325, 989450), (350, 918775), (385, 835250), (455, 706750), (514, 625625), (550, 584675), (625, 514514), (650, 494725), (715, 449750), (770, 417625), (875, 367510), (910, 353375), (1001, 321250), (1250, 257257), (1285, 250250), (1375, 233870), (1430, 224875), (1625, 197890), (1750, 183755), (1799, 178750), (1925, 167050), (2002, 160625), (2275, 141350), (2570, 125125), (2750, 116935), (2827, 113750), (3250, 98945), (3341, 96250), (3575, 89950), (3598, 89375), (3850, 83525), (4375, 73502), (4550, 70675), (5005, 64250), (5654, 56875), (6425, 50050), (6682, 48125), (6875, 46774), (7150, 44975), (8125, 39578), (8750, 36751), (8995, 35750), (9625, 33410), (10010, 32125), (11375, 28270), (12850, 25025), (13750, 23387), (14135, 22750), (16250, 19789), (16705, 19250), (17875, 17990)]