13023220

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{97}}^1\times {\mathrm{137}}^1$

素因数の和:257

約数の個数: 72

約数和(自身を含む): 32376456

約数和(自身を除く): 19353236

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 97, 98, 137, 140, 194, 196, 245, 274, 388, 485, 490, 548, 679, 685, 959, 970, 980, 1358, 1370, 1918, 1940, 2716, 2740, 3395, 3836, 4753, 4795, 6713, 6790, 9506, 9590, 13289, 13426, 13580, 19012, 19180, 23765, 26578, 26852, 33565, 47530, 53156, 66445, 67130, 93023, 95060, 132890, 134260, 186046, 265780, 372092, 465115, 651161, 930230, 1302322, 1860460, 2604644, 3255805, 6511610, 13023220]

約数ペア:

[(1, 13023220), (2, 6511610), (4, 3255805), (5, 2604644), (7, 1860460), (10, 1302322), (14, 930230), (20, 651161), (28, 465115), (35, 372092), (49, 265780), (70, 186046), (97, 134260), (98, 132890), (137, 95060), (140, 93023), (194, 67130), (196, 66445), (245, 53156), (274, 47530), (388, 33565), (485, 26852), (490, 26578), (548, 23765), (679, 19180), (685, 19012), (959, 13580), (970, 13426), (980, 13289), (1358, 9590), (1370, 9506), (1918, 6790), (1940, 6713), (2716, 4795), (2740, 4753), (3395, 3836)]