20103558280

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1247119}}^1$

素因数の和:1247174

約数の個数: 64

約数和(自身を含む): 50283878400

約数和(自身を除く): 30180320120

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 31, 40, 52, 62, 65, 104, 124, 130, 155, 248, 260, 310, 403, 520, 620, 806, 1240, 1612, 2015, 3224, 4030, 8060, 16120, 1247119, 2494238, 4988476, 6235595, 9976952, 12471190, 16212547, 24942380, 32425094, 38660689, 49884760, 64850188, 77321378, 81062735, 129700376, 154642756, 162125470, 193303445, 309285512, 324250940, 386606890, 502588957, 648501880, 773213780, 1005177914, 1546427560, 2010355828, 2512944785, 4020711656, 5025889570, 10051779140, 20103558280]

約数ペア:

[(1, 20103558280), (2, 10051779140), (4, 5025889570), (5, 4020711656), (8, 2512944785), (10, 2010355828), (13, 1546427560), (20, 1005177914), (26, 773213780), (31, 648501880), (40, 502588957), (52, 386606890), (62, 324250940), (65, 309285512), (104, 193303445), (124, 162125470), (130, 154642756), (155, 129700376), (248, 81062735), (260, 77321378), (310, 64850188), (403, 49884760), (520, 38660689), (620, 32425094), (806, 24942380), (1240, 16212547), (1612, 12471190), (2015, 9976952), (3224, 6235595), (4030, 4988476), (8060, 2494238), (16120, 1247119)]