2021067525

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{19}}^2\times {\mathrm{4391}}^1$

素因数の和:4459

約数の個数: 72

約数和(自身を含む): 3734921664

約数和(自身を除く): 1713854139

約数列:

[1, 3, 5, 15, 17, 19, 25, 51, 57, 75, 85, 95, 255, 285, 323, 361, 425, 475, 969, 1083, 1275, 1425, 1615, 1805, 4391, 4845, 5415, 6137, 8075, 9025, 13173, 18411, 21955, 24225, 27075, 30685, 65865, 74647, 83429, 92055, 109775, 153425, 223941, 250287, 329325, 373235, 417145, 460275, 1119705, 1251435, 1418293, 1585151, 1866175, 2085725, 4254879, 4755453, 5598525, 6257175, 7091465, 7925755, 21274395, 23777265, 26947567, 35457325, 39628775, 80842701, 106371975, 118886325, 134737835, 404213505, 673689175, 2021067525]

約数ペア:

[(1, 2021067525), (3, 673689175), (5, 404213505), (15, 134737835), (17, 118886325), (19, 106371975), (25, 80842701), (51, 39628775), (57, 35457325), (75, 26947567), (85, 23777265), (95, 21274395), (255, 7925755), (285, 7091465), (323, 6257175), (361, 5598525), (425, 4755453), (475, 4254879), (969, 2085725), (1083, 1866175), (1275, 1585151), (1425, 1418293), (1615, 1251435), (1805, 1119705), (4391, 460275), (4845, 417145), (5415, 373235), (6137, 329325), (8075, 250287), (9025, 223941), (13173, 153425), (18411, 109775), (21955, 92055), (24225, 83429), (27075, 74647), (30685, 65865)]