20821050

素因数分解:

$2^1\times 3^4\times 5^2\times {\mathrm{53}}^1\times {\mathrm{97}}^1$

素因数の和:174

約数の個数: 120

約数和(自身を含む): 59550876

約数和(自身を除く): 38729826

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 27, 30, 45, 50, 53, 54, 75, 81, 90, 97, 106, 135, 150, 159, 162, 194, 225, 265, 270, 291, 318, 405, 450, 477, 485, 530, 582, 675, 795, 810, 873, 954, 970, 1325, 1350, 1431, 1455, 1590, 1746, 2025, 2385, 2425, 2619, 2650, 2862, 2910, 3975, 4050, 4293, 4365, 4770, 4850, 5141, 5238, 7155, 7275, 7857, 7950, 8586, 8730, 10282, 11925, 13095, 14310, 14550, 15423, 15714, 21465, 21825, 23850, 25705, 26190, 30846, 35775, 39285, 42930, 43650, 46269, 51410, 65475, 71550, 77115, 78570, 92538, 107325, 128525, 130950, 138807, 154230, 196425, 214650, 231345, 257050, 277614, 385575, 392850, 416421, 462690, 694035, 771150, 832842, 1156725, 1388070, 2082105, 2313450, 3470175, 4164210, 6940350, 10410525, 20821050]

約数ペア:

[(1, 20821050), (2, 10410525), (3, 6940350), (5, 4164210), (6, 3470175), (9, 2313450), (10, 2082105), (15, 1388070), (18, 1156725), (25, 832842), (27, 771150), (30, 694035), (45, 462690), (50, 416421), (53, 392850), (54, 385575), (75, 277614), (81, 257050), (90, 231345), (97, 214650), (106, 196425), (135, 154230), (150, 138807), (159, 130950), (162, 128525), (194, 107325), (225, 92538), (265, 78570), (270, 77115), (291, 71550), (318, 65475), (405, 51410), (450, 46269), (477, 43650), (485, 42930), (530, 39285), (582, 35775), (675, 30846), (795, 26190), (810, 25705), (873, 23850), (954, 21825), (970, 21465), (1325, 15714), (1350, 15423), (1431, 14550), (1455, 14310), (1590, 13095), (1746, 11925), (2025, 10282), (2385, 8730), (2425, 8586), (2619, 7950), (2650, 7857), (2862, 7275), (2910, 7155), (3975, 5238), (4050, 5141), (4293, 4850), (4365, 4770)]