1640802968

素因数分解:

$2^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{137}}^1\times {\mathrm{6899}}^1$

素因数の和:7080

約数の個数: 64

約数和(自身を含む): 3656448000

約数和(自身を除く): 2015645032

約数列:

[1, 2, 4, 7, 8, 14, 28, 31, 56, 62, 124, 137, 217, 248, 274, 434, 548, 868, 959, 1096, 1736, 1918, 3836, 4247, 6899, 7672, 8494, 13798, 16988, 27596, 29729, 33976, 48293, 55192, 59458, 96586, 118916, 193172, 213869, 237832, 386344, 427738, 855476, 945163, 1497083, 1710952, 1890326, 2994166, 3780652, 5988332, 6616141, 7561304, 11976664, 13232282, 26464564, 29300053, 52929128, 58600106, 117200212, 205100371, 234400424, 410200742, 820401484, 1640802968]

約数ペア:

[(1, 1640802968), (2, 820401484), (4, 410200742), (7, 234400424), (8, 205100371), (14, 117200212), (28, 58600106), (31, 52929128), (56, 29300053), (62, 26464564), (124, 13232282), (137, 11976664), (217, 7561304), (248, 6616141), (274, 5988332), (434, 3780652), (548, 2994166), (868, 1890326), (959, 1710952), (1096, 1497083), (1736, 945163), (1918, 855476), (3836, 427738), (4247, 386344), (6899, 237832), (7672, 213869), (8494, 193172), (13798, 118916), (16988, 96586), (27596, 59458), (29729, 55192), (33976, 48293)]