19741700

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{137}}^1$

素因数の和:293

約数の個数: 72

約数和(自身を含む): 47434464

約数和(自身を除く): 27692764

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 131, 137, 220, 262, 274, 275, 524, 548, 550, 655, 685, 1100, 1310, 1370, 1441, 1507, 2620, 2740, 2882, 3014, 3275, 3425, 5764, 6028, 6550, 6850, 7205, 7535, 13100, 13700, 14410, 15070, 17947, 28820, 30140, 35894, 36025, 37675, 71788, 72050, 75350, 89735, 144100, 150700, 179470, 197417, 358940, 394834, 448675, 789668, 897350, 987085, 1794700, 1974170, 3948340, 4935425, 9870850, 19741700]

約数ペア:

[(1, 19741700), (2, 9870850), (4, 4935425), (5, 3948340), (10, 1974170), (11, 1794700), (20, 987085), (22, 897350), (25, 789668), (44, 448675), (50, 394834), (55, 358940), (100, 197417), (110, 179470), (131, 150700), (137, 144100), (220, 89735), (262, 75350), (274, 72050), (275, 71788), (524, 37675), (548, 36025), (550, 35894), (655, 30140), (685, 28820), (1100, 17947), (1310, 15070), (1370, 14410), (1441, 13700), (1507, 13100), (2620, 7535), (2740, 7205), (2882, 6850), (3014, 6550), (3275, 6028), (3425, 5764)]