639274344

素因数分解:

$2^3\times 3^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1\times {\mathrm{2699}}^1$

素因数の和:2918

約数の個数: 64

約数和(自身を含む): 1632960000

約数和(自身を除く): 993685656

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 71, 139, 142, 213, 278, 284, 417, 426, 556, 568, 834, 852, 1112, 1668, 1704, 2699, 3336, 5398, 8097, 9869, 10796, 16194, 19738, 21592, 29607, 32388, 39476, 59214, 64776, 78952, 118428, 191629, 236856, 375161, 383258, 574887, 750322, 766516, 1125483, 1149774, 1500644, 1533032, 2250966, 2299548, 3001288, 4501932, 4599096, 9003864, 26636431, 53272862, 79909293, 106545724, 159818586, 213091448, 319637172, 639274344]

約数ペア:

[(1, 639274344), (2, 319637172), (3, 213091448), (4, 159818586), (6, 106545724), (8, 79909293), (12, 53272862), (24, 26636431), (71, 9003864), (139, 4599096), (142, 4501932), (213, 3001288), (278, 2299548), (284, 2250966), (417, 1533032), (426, 1500644), (556, 1149774), (568, 1125483), (834, 766516), (852, 750322), (1112, 574887), (1668, 383258), (1704, 375161), (2699, 236856), (3336, 191629), (5398, 118428), (8097, 78952), (9869, 64776), (10796, 59214), (16194, 39476), (19738, 32388), (21592, 29607)]