20214121456

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{83}}^1\times {\mathrm{12611}}^1$

素因数の和:12790

約数の個数: 80

約数和(自身を含む): 42562775808

約数和(自身を除く): 22348654352

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 71, 83, 136, 142, 166, 272, 284, 332, 568, 664, 1136, 1207, 1328, 1411, 2414, 2822, 4828, 5644, 5893, 9656, 11288, 11786, 12611, 19312, 22576, 23572, 25222, 47144, 50444, 94288, 100181, 100888, 200362, 201776, 214387, 400724, 428774, 801448, 857548, 895381, 1046713, 1602896, 1715096, 1790762, 2093426, 3430192, 3581524, 4186852, 7163048, 8373704, 14326096, 15221477, 16747408, 17794121, 30442954, 35588242, 60885908, 71176484, 74316623, 121771816, 142352968, 148633246, 243543632, 284705936, 297266492, 594532984, 1189065968, 1263382591, 2526765182, 5053530364, 10107060728, 20214121456]

約数ペア:

[(1, 20214121456), (2, 10107060728), (4, 5053530364), (8, 2526765182), (16, 1263382591), (17, 1189065968), (34, 594532984), (68, 297266492), (71, 284705936), (83, 243543632), (136, 148633246), (142, 142352968), (166, 121771816), (272, 74316623), (284, 71176484), (332, 60885908), (568, 35588242), (664, 30442954), (1136, 17794121), (1207, 16747408), (1328, 15221477), (1411, 14326096), (2414, 8373704), (2822, 7163048), (4828, 4186852), (5644, 3581524), (5893, 3430192), (9656, 2093426), (11288, 1790762), (11786, 1715096), (12611, 1602896), (19312, 1046713), (22576, 895381), (23572, 857548), (25222, 801448), (47144, 428774), (50444, 400724), (94288, 214387), (100181, 201776), (100888, 200362)]