20297250

素因数分解:

$2^1\times 3^3\times 5^3\times {\mathrm{31}}^1\times {\mathrm{97}}^1$

素因数の和:154

約数の個数: 128

約数和(自身を含む): 58705920

約数和(自身を除く): 38408670

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 27, 30, 31, 45, 50, 54, 62, 75, 90, 93, 97, 125, 135, 150, 155, 186, 194, 225, 250, 270, 279, 291, 310, 375, 450, 465, 485, 558, 582, 675, 750, 775, 837, 873, 930, 970, 1125, 1350, 1395, 1455, 1550, 1674, 1746, 2250, 2325, 2425, 2619, 2790, 2910, 3007, 3375, 3875, 4185, 4365, 4650, 4850, 5238, 6014, 6750, 6975, 7275, 7750, 8370, 8730, 9021, 11625, 12125, 13095, 13950, 14550, 15035, 18042, 20925, 21825, 23250, 24250, 26190, 27063, 30070, 34875, 36375, 41850, 43650, 45105, 54126, 65475, 69750, 72750, 75175, 81189, 90210, 104625, 109125, 130950, 135315, 150350, 162378, 209250, 218250, 225525, 270630, 327375, 375875, 405945, 451050, 654750, 676575, 751750, 811890, 1127625, 1353150, 2029725, 2255250, 3382875, 4059450, 6765750, 10148625, 20297250]

約数ペア:

[(1, 20297250), (2, 10148625), (3, 6765750), (5, 4059450), (6, 3382875), (9, 2255250), (10, 2029725), (15, 1353150), (18, 1127625), (25, 811890), (27, 751750), (30, 676575), (31, 654750), (45, 451050), (50, 405945), (54, 375875), (62, 327375), (75, 270630), (90, 225525), (93, 218250), (97, 209250), (125, 162378), (135, 150350), (150, 135315), (155, 130950), (186, 109125), (194, 104625), (225, 90210), (250, 81189), (270, 75175), (279, 72750), (291, 69750), (310, 65475), (375, 54126), (450, 45105), (465, 43650), (485, 41850), (558, 36375), (582, 34875), (675, 30070), (750, 27063), (775, 26190), (837, 24250), (873, 23250), (930, 21825), (970, 20925), (1125, 18042), (1350, 15035), (1395, 14550), (1455, 13950), (1550, 13095), (1674, 12125), (1746, 11625), (2250, 9021), (2325, 8730), (2425, 8370), (2619, 7750), (2790, 7275), (2910, 6975), (3007, 6750), (3375, 6014), (3875, 5238), (4185, 4850), (4365, 4650)]