81810188

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{97}}^1\times {\mathrm{157}}^1$

素因数の和:354

約数の個数: 48

約数和(自身を含む): 156078720

約数和(自身を除く): 74268532

約数列:

[1, 2, 4, 17, 34, 68, 79, 97, 157, 158, 194, 314, 316, 388, 628, 1343, 1649, 2669, 2686, 3298, 5338, 5372, 6596, 7663, 10676, 12403, 15229, 15326, 24806, 30458, 30652, 49612, 60916, 130271, 210851, 258893, 260542, 421702, 517786, 521084, 843404, 1035572, 1203091, 2406182, 4812364, 20452547, 40905094, 81810188]

約数ペア:

[(1, 81810188), (2, 40905094), (4, 20452547), (17, 4812364), (34, 2406182), (68, 1203091), (79, 1035572), (97, 843404), (157, 521084), (158, 517786), (194, 421702), (314, 260542), (316, 258893), (388, 210851), (628, 130271), (1343, 60916), (1649, 49612), (2669, 30652), (2686, 30458), (3298, 24806), (5338, 15326), (5372, 15229), (6596, 12403), (7663, 10676)]