311380680

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{199603}}^1$

素因数の和:199630

約数の個数: 64

約数和(自身を含む): 1006004160

約数和(自身を除く): 694623480

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 199603, 399206, 598809, 798412, 998015, 1197618, 1596824, 1996030, 2395236, 2594839, 2994045, 3992060, 4790472, 5189678, 5988090, 7784517, 7984120, 10379356, 11976180, 12974195, 15569034, 20758712, 23952360, 25948390, 31138068, 38922585, 51896780, 62276136, 77845170, 103793560, 155690340, 311380680]

約数ペア:

[(1, 311380680), (2, 155690340), (3, 103793560), (4, 77845170), (5, 62276136), (6, 51896780), (8, 38922585), (10, 31138068), (12, 25948390), (13, 23952360), (15, 20758712), (20, 15569034), (24, 12974195), (26, 11976180), (30, 10379356), (39, 7984120), (40, 7784517), (52, 5988090), (60, 5189678), (65, 4790472), (78, 3992060), (104, 2994045), (120, 2594839), (130, 2395236), (156, 1996030), (195, 1596824), (260, 1197618), (312, 998015), (390, 798412), (520, 598809), (780, 399206), (1560, 199603)]