81144700

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{241}}^1$

素因数の和:312

約数の個数: 144

約数和(自身を含む): 223499584

約数和(自身を除く): 142354884

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 25, 26, 28, 35, 37, 50, 52, 65, 70, 74, 91, 100, 130, 140, 148, 175, 182, 185, 241, 259, 260, 325, 350, 364, 370, 455, 481, 482, 518, 650, 700, 740, 910, 925, 962, 964, 1036, 1205, 1295, 1300, 1687, 1820, 1850, 1924, 2275, 2405, 2410, 2590, 3133, 3367, 3374, 3700, 4550, 4810, 4820, 5180, 6025, 6266, 6475, 6734, 6748, 8435, 8917, 9100, 9620, 12025, 12050, 12532, 12950, 13468, 15665, 16835, 16870, 17834, 21931, 24050, 24100, 25900, 31330, 33670, 33740, 35668, 42175, 43862, 44585, 48100, 62419, 62660, 67340, 78325, 84175, 84350, 87724, 89170, 109655, 115921, 124838, 156650, 168350, 168700, 178340, 219310, 222925, 231842, 249676, 312095, 313300, 336700, 438620, 445850, 463684, 548275, 579605, 624190, 811447, 891700, 1096550, 1159210, 1248380, 1560475, 1622894, 2193100, 2318420, 2898025, 3120950, 3245788, 4057235, 5796050, 6241900, 8114470, 11592100, 16228940, 20286175, 40572350, 81144700]

約数ペア:

[(1, 81144700), (2, 40572350), (4, 20286175), (5, 16228940), (7, 11592100), (10, 8114470), (13, 6241900), (14, 5796050), (20, 4057235), (25, 3245788), (26, 3120950), (28, 2898025), (35, 2318420), (37, 2193100), (50, 1622894), (52, 1560475), (65, 1248380), (70, 1159210), (74, 1096550), (91, 891700), (100, 811447), (130, 624190), (140, 579605), (148, 548275), (175, 463684), (182, 445850), (185, 438620), (241, 336700), (259, 313300), (260, 312095), (325, 249676), (350, 231842), (364, 222925), (370, 219310), (455, 178340), (481, 168700), (482, 168350), (518, 156650), (650, 124838), (700, 115921), (740, 109655), (910, 89170), (925, 87724), (962, 84350), (964, 84175), (1036, 78325), (1205, 67340), (1295, 62660), (1300, 62419), (1687, 48100), (1820, 44585), (1850, 43862), (1924, 42175), (2275, 35668), (2405, 33740), (2410, 33670), (2590, 31330), (3133, 25900), (3367, 24100), (3374, 24050), (3700, 21931), (4550, 17834), (4810, 16870), (4820, 16835), (5180, 15665), (6025, 13468), (6266, 12950), (6475, 12532), (6734, 12050), (6748, 12025), (8435, 9620), (8917, 9100)]