646727340

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{66949}}^1$

素因数の和:66991

約数の個数: 96

約数和(自身を含む): 2159539200

約数和(自身を除く): 1512811860

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 23, 28, 30, 35, 42, 46, 60, 69, 70, 84, 92, 105, 115, 138, 140, 161, 210, 230, 276, 322, 345, 420, 460, 483, 644, 690, 805, 966, 1380, 1610, 1932, 2415, 3220, 4830, 9660, 66949, 133898, 200847, 267796, 334745, 401694, 468643, 669490, 803388, 937286, 1004235, 1338980, 1405929, 1539827, 1874572, 2008470, 2343215, 2811858, 3079654, 4016940, 4619481, 4686430, 5623716, 6159308, 7029645, 7699135, 9238962, 9372860, 10778789, 14059290, 15398270, 18477924, 21557578, 23097405, 28118580, 30796540, 32336367, 43115156, 46194810, 53893945, 64672734, 92389620, 107787890, 129345468, 161681835, 215575780, 323363670, 646727340]

約数ペア:

[(1, 646727340), (2, 323363670), (3, 215575780), (4, 161681835), (5, 129345468), (6, 107787890), (7, 92389620), (10, 64672734), (12, 53893945), (14, 46194810), (15, 43115156), (20, 32336367), (21, 30796540), (23, 28118580), (28, 23097405), (30, 21557578), (35, 18477924), (42, 15398270), (46, 14059290), (60, 10778789), (69, 9372860), (70, 9238962), (84, 7699135), (92, 7029645), (105, 6159308), (115, 5623716), (138, 4686430), (140, 4619481), (161, 4016940), (210, 3079654), (230, 2811858), (276, 2343215), (322, 2008470), (345, 1874572), (420, 1539827), (460, 1405929), (483, 1338980), (644, 1004235), (690, 937286), (805, 803388), (966, 669490), (1380, 468643), (1610, 401694), (1932, 334745), (2415, 267796), (3220, 200847), (4830, 133898), (9660, 66949)]