20165962672

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{73}}^1\times {\mathrm{349}}^1\times {\mathrm{811}}^1$

素因数の和:1302

約数の個数: 80

約数和(自身を含む): 40421197600

約数和(自身を除く): 20255234928

約数列:

[1, 2, 4, 8, 16, 61, 73, 122, 146, 244, 292, 349, 488, 584, 698, 811, 976, 1168, 1396, 1622, 2792, 3244, 4453, 5584, 6488, 8906, 12976, 17812, 21289, 25477, 35624, 42578, 49471, 50954, 59203, 71248, 85156, 98942, 101908, 118406, 170312, 197884, 203816, 236812, 283039, 340624, 395768, 407632, 473624, 566078, 791536, 947248, 1132156, 1554097, 2264312, 3108194, 3611383, 4528624, 6216388, 7222766, 12432776, 14445532, 17265379, 20661847, 24865552, 28891064, 34530758, 41323694, 57782128, 69061516, 82647388, 138123032, 165294776, 276246064, 330589552, 1260372667, 2520745334, 5041490668, 10082981336, 20165962672]

約数ペア:

[(1, 20165962672), (2, 10082981336), (4, 5041490668), (8, 2520745334), (16, 1260372667), (61, 330589552), (73, 276246064), (122, 165294776), (146, 138123032), (244, 82647388), (292, 69061516), (349, 57782128), (488, 41323694), (584, 34530758), (698, 28891064), (811, 24865552), (976, 20661847), (1168, 17265379), (1396, 14445532), (1622, 12432776), (2792, 7222766), (3244, 6216388), (4453, 4528624), (5584, 3611383), (6488, 3108194), (8906, 2264312), (12976, 1554097), (17812, 1132156), (21289, 947248), (25477, 791536), (35624, 566078), (42578, 473624), (49471, 407632), (50954, 395768), (59203, 340624), (71248, 283039), (85156, 236812), (98942, 203816), (101908, 197884), (118406, 170312)]