1819025720

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{137}}^1\times {\mathrm{6263}}^1$

素因数の和:6464

約数の個数: 64

約数和(自身を含む): 4201139520

約数和(自身を除く): 2382113800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 137, 212, 265, 274, 424, 530, 548, 685, 1060, 1096, 1370, 2120, 2740, 5480, 6263, 7261, 12526, 14522, 25052, 29044, 31315, 36305, 50104, 58088, 62630, 72610, 125260, 145220, 250520, 290440, 331939, 663878, 858031, 1327756, 1659695, 1716062, 2655512, 3319390, 3432124, 4290155, 6638780, 6864248, 8580310, 13277560, 17160620, 34321240, 45475643, 90951286, 181902572, 227378215, 363805144, 454756430, 909512860, 1819025720]

約数ペア:

[(1, 1819025720), (2, 909512860), (4, 454756430), (5, 363805144), (8, 227378215), (10, 181902572), (20, 90951286), (40, 45475643), (53, 34321240), (106, 17160620), (137, 13277560), (212, 8580310), (265, 6864248), (274, 6638780), (424, 4290155), (530, 3432124), (548, 3319390), (685, 2655512), (1060, 1716062), (1096, 1659695), (1370, 1327756), (2120, 858031), (2740, 663878), (5480, 331939), (6263, 290440), (7261, 250520), (12526, 145220), (14522, 125260), (25052, 72610), (29044, 62630), (31315, 58088), (36305, 50104)]