20576250

素因数分解:

$2^1\times 3^2\times 5^4\times {\mathrm{31}}^1\times {\mathrm{59}}^1$

素因数の和:118

約数の個数: 120

約数和(自身を含む): 58481280

約数和(自身を除く): 37905030

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 30, 31, 45, 50, 59, 62, 75, 90, 93, 118, 125, 150, 155, 177, 186, 225, 250, 279, 295, 310, 354, 375, 450, 465, 531, 558, 590, 625, 750, 775, 885, 930, 1062, 1125, 1250, 1395, 1475, 1550, 1770, 1829, 1875, 2250, 2325, 2655, 2790, 2950, 3658, 3750, 3875, 4425, 4650, 5310, 5487, 5625, 6975, 7375, 7750, 8850, 9145, 10974, 11250, 11625, 13275, 13950, 14750, 16461, 18290, 19375, 22125, 23250, 26550, 27435, 32922, 34875, 36875, 38750, 44250, 45725, 54870, 58125, 66375, 69750, 73750, 82305, 91450, 110625, 116250, 132750, 137175, 164610, 174375, 221250, 228625, 274350, 331875, 348750, 411525, 457250, 663750, 685875, 823050, 1143125, 1371750, 2057625, 2286250, 3429375, 4115250, 6858750, 10288125, 20576250]

約数ペア:

[(1, 20576250), (2, 10288125), (3, 6858750), (5, 4115250), (6, 3429375), (9, 2286250), (10, 2057625), (15, 1371750), (18, 1143125), (25, 823050), (30, 685875), (31, 663750), (45, 457250), (50, 411525), (59, 348750), (62, 331875), (75, 274350), (90, 228625), (93, 221250), (118, 174375), (125, 164610), (150, 137175), (155, 132750), (177, 116250), (186, 110625), (225, 91450), (250, 82305), (279, 73750), (295, 69750), (310, 66375), (354, 58125), (375, 54870), (450, 45725), (465, 44250), (531, 38750), (558, 36875), (590, 34875), (625, 32922), (750, 27435), (775, 26550), (885, 23250), (930, 22125), (1062, 19375), (1125, 18290), (1250, 16461), (1395, 14750), (1475, 13950), (1550, 13275), (1770, 11625), (1829, 11250), (1875, 10974), (2250, 9145), (2325, 8850), (2655, 7750), (2790, 7375), (2950, 6975), (3658, 5625), (3750, 5487), (3875, 5310), (4425, 4650)]