81450900

素因数分解:

$2^2\times 3^3\times 5^2\times {\mathrm{97}}^1\times {\mathrm{311}}^1$

素因数の和:431

約数の個数: 144

約数和(自身を含む): 265399680

約数和(自身を除く): 183948780

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 27, 30, 36, 45, 50, 54, 60, 75, 90, 97, 100, 108, 135, 150, 180, 194, 225, 270, 291, 300, 311, 388, 450, 485, 540, 582, 622, 675, 873, 900, 933, 970, 1164, 1244, 1350, 1455, 1555, 1746, 1866, 1940, 2425, 2619, 2700, 2799, 2910, 3110, 3492, 3732, 4365, 4665, 4850, 5238, 5598, 5820, 6220, 7275, 7775, 8397, 8730, 9330, 9700, 10476, 11196, 13095, 13995, 14550, 15550, 16794, 17460, 18660, 21825, 23325, 26190, 27990, 29100, 30167, 31100, 33588, 41985, 43650, 46650, 52380, 55980, 60334, 65475, 69975, 83970, 87300, 90501, 93300, 120668, 130950, 139950, 150835, 167940, 181002, 209925, 261900, 271503, 279900, 301670, 362004, 419850, 452505, 543006, 603340, 754175, 814509, 839700, 905010, 1086012, 1357515, 1508350, 1629018, 1810020, 2262525, 2715030, 3016700, 3258036, 4072545, 4525050, 5430060, 6787575, 8145090, 9050100, 13575150, 16290180, 20362725, 27150300, 40725450, 81450900]

約数ペア:

[(1, 81450900), (2, 40725450), (3, 27150300), (4, 20362725), (5, 16290180), (6, 13575150), (9, 9050100), (10, 8145090), (12, 6787575), (15, 5430060), (18, 4525050), (20, 4072545), (25, 3258036), (27, 3016700), (30, 2715030), (36, 2262525), (45, 1810020), (50, 1629018), (54, 1508350), (60, 1357515), (75, 1086012), (90, 905010), (97, 839700), (100, 814509), (108, 754175), (135, 603340), (150, 543006), (180, 452505), (194, 419850), (225, 362004), (270, 301670), (291, 279900), (300, 271503), (311, 261900), (388, 209925), (450, 181002), (485, 167940), (540, 150835), (582, 139950), (622, 130950), (675, 120668), (873, 93300), (900, 90501), (933, 87300), (970, 83970), (1164, 69975), (1244, 65475), (1350, 60334), (1455, 55980), (1555, 52380), (1746, 46650), (1866, 43650), (1940, 41985), (2425, 33588), (2619, 31100), (2700, 30167), (2799, 29100), (2910, 27990), (3110, 26190), (3492, 23325), (3732, 21825), (4365, 18660), (4665, 17460), (4850, 16794), (5238, 15550), (5598, 14550), (5820, 13995), (6220, 13095), (7275, 11196), (7775, 10476), (8397, 9700), (8730, 9330)]