72204720

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{42979}}^1$

素因数の和:43002

約数の個数: 80

約数和(自身を含む): 255816960

約数和(自身を除く): 183612240

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 42979, 85958, 128937, 171916, 214895, 257874, 300853, 343832, 429790, 515748, 601706, 644685, 687664, 859580, 902559, 1031496, 1203412, 1289370, 1504265, 1719160, 1805118, 2062992, 2406824, 2578740, 3008530, 3438320, 3610236, 4512795, 4813648, 5157480, 6017060, 7220472, 9025590, 10314960, 12034120, 14440944, 18051180, 24068240, 36102360, 72204720]

約数ペア:

[(1, 72204720), (2, 36102360), (3, 24068240), (4, 18051180), (5, 14440944), (6, 12034120), (7, 10314960), (8, 9025590), (10, 7220472), (12, 6017060), (14, 5157480), (15, 4813648), (16, 4512795), (20, 3610236), (21, 3438320), (24, 3008530), (28, 2578740), (30, 2406824), (35, 2062992), (40, 1805118), (42, 1719160), (48, 1504265), (56, 1289370), (60, 1203412), (70, 1031496), (80, 902559), (84, 859580), (105, 687664), (112, 644685), (120, 601706), (140, 515748), (168, 429790), (210, 343832), (240, 300853), (280, 257874), (336, 214895), (420, 171916), (560, 128937), (840, 85958), (1680, 42979)]