20163681664

素因数分解:

$2^7\times 7^1\times {\mathrm{31}}^1\times {\mathrm{725939}}^1$

素因数の和:725991

約数の個数: 64

約数和(自身を含む): 47389363200

約数和(自身を除く): 27225681536

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 32, 56, 62, 64, 112, 124, 128, 217, 224, 248, 434, 448, 496, 868, 896, 992, 1736, 1984, 3472, 3968, 6944, 13888, 27776, 725939, 1451878, 2903756, 5081573, 5807512, 10163146, 11615024, 20326292, 22504109, 23230048, 40652584, 45008218, 46460096, 81305168, 90016436, 92920192, 157528763, 162610336, 180032872, 315057526, 325220672, 360065744, 630115052, 650441344, 720131488, 1260230104, 1440262976, 2520460208, 2880525952, 5040920416, 10081840832, 20163681664]

約数ペア:

[(1, 20163681664), (2, 10081840832), (4, 5040920416), (7, 2880525952), (8, 2520460208), (14, 1440262976), (16, 1260230104), (28, 720131488), (31, 650441344), (32, 630115052), (56, 360065744), (62, 325220672), (64, 315057526), (112, 180032872), (124, 162610336), (128, 157528763), (217, 92920192), (224, 90016436), (248, 81305168), (434, 46460096), (448, 45008218), (496, 40652584), (868, 23230048), (896, 22504109), (992, 20326292), (1736, 11615024), (1984, 10163146), (3472, 5807512), (3968, 5081573), (6944, 2903756), (13888, 1451878), (27776, 725939)]