20421036664

素因数分解:

$2^3\times 7^1\times {\mathrm{67}}^1\times {\mathrm{2099}}^1\times {\mathrm{2593}}^1$

素因数の和:4772

約数の個数: 64

約数和(自身を含む): 44450784000

約数和(自身を除く): 24029747336

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 67, 134, 268, 469, 536, 938, 1876, 2099, 2593, 3752, 4198, 5186, 8396, 10372, 14693, 16792, 18151, 20744, 29386, 36302, 58772, 72604, 117544, 140633, 145208, 173731, 281266, 347462, 562532, 694924, 984431, 1125064, 1216117, 1389848, 1968862, 2432234, 3937724, 4864468, 5442707, 7875448, 9728936, 10885414, 21770828, 38098949, 43541656, 76197898, 152395796, 304791592, 364661369, 729322738, 1458645476, 2552629583, 2917290952, 5105259166, 10210518332, 20421036664]

約数ペア:

[(1, 20421036664), (2, 10210518332), (4, 5105259166), (7, 2917290952), (8, 2552629583), (14, 1458645476), (28, 729322738), (56, 364661369), (67, 304791592), (134, 152395796), (268, 76197898), (469, 43541656), (536, 38098949), (938, 21770828), (1876, 10885414), (2099, 9728936), (2593, 7875448), (3752, 5442707), (4198, 4864468), (5186, 3937724), (8396, 2432234), (10372, 1968862), (14693, 1389848), (16792, 1216117), (18151, 1125064), (20744, 984431), (29386, 694924), (36302, 562532), (58772, 347462), (72604, 281266), (117544, 173731), (140633, 145208)]