81991590

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{673}}^1$

素因数の和:845

約数の個数: 64

約数和(自身を含む): 204982272

約数和(自身を除く): 122990682

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 31, 62, 93, 131, 155, 186, 262, 310, 393, 465, 655, 673, 786, 930, 1310, 1346, 1965, 2019, 3365, 3930, 4038, 4061, 6730, 8122, 10095, 12183, 20190, 20305, 20863, 24366, 40610, 41726, 60915, 62589, 88163, 104315, 121830, 125178, 176326, 208630, 264489, 312945, 440815, 528978, 625890, 881630, 1322445, 2644890, 2733053, 5466106, 8199159, 13665265, 16398318, 27330530, 40995795, 81991590]

約数ペア:

[(1, 81991590), (2, 40995795), (3, 27330530), (5, 16398318), (6, 13665265), (10, 8199159), (15, 5466106), (30, 2733053), (31, 2644890), (62, 1322445), (93, 881630), (131, 625890), (155, 528978), (186, 440815), (262, 312945), (310, 264489), (393, 208630), (465, 176326), (655, 125178), (673, 121830), (786, 104315), (930, 88163), (1310, 62589), (1346, 60915), (1965, 41726), (2019, 40610), (3365, 24366), (3930, 20863), (4038, 20305), (4061, 20190), (6730, 12183), (8122, 10095)]