194872990

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{491}}^1$

素因数の和:625

約数の個数: 64

約数和(自身を含む): 392781312

約数和(自身を除く): 197908322

約数列:

[1, 2, 5, 10, 13, 26, 43, 65, 71, 86, 130, 142, 215, 355, 430, 491, 559, 710, 923, 982, 1118, 1846, 2455, 2795, 3053, 4615, 4910, 5590, 6106, 6383, 9230, 12766, 15265, 21113, 30530, 31915, 34861, 39689, 42226, 63830, 69722, 79378, 105565, 174305, 198445, 211130, 274469, 348610, 396890, 453193, 548938, 906386, 1372345, 1499023, 2265965, 2744690, 2998046, 4531930, 7495115, 14990230, 19487299, 38974598, 97436495, 194872990]

約数ペア:

[(1, 194872990), (2, 97436495), (5, 38974598), (10, 19487299), (13, 14990230), (26, 7495115), (43, 4531930), (65, 2998046), (71, 2744690), (86, 2265965), (130, 1499023), (142, 1372345), (215, 906386), (355, 548938), (430, 453193), (491, 396890), (559, 348610), (710, 274469), (923, 211130), (982, 198445), (1118, 174305), (1846, 105565), (2455, 79378), (2795, 69722), (3053, 63830), (4615, 42226), (4910, 39689), (5590, 34861), (6106, 31915), (6383, 30530), (9230, 21113), (12766, 15265)]