64406440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{137}}^1$

素因数の和:251

約数の個数: 128

約数和(自身を含む): 176463360

約数和(自身を除く): 112056920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 35, 40, 46, 56, 70, 73, 92, 115, 137, 140, 146, 161, 184, 230, 274, 280, 292, 322, 365, 460, 511, 548, 584, 644, 685, 730, 805, 920, 959, 1022, 1096, 1288, 1370, 1460, 1610, 1679, 1918, 2044, 2555, 2740, 2920, 3151, 3220, 3358, 3836, 4088, 4795, 5110, 5480, 6302, 6440, 6716, 7672, 8395, 9590, 10001, 10220, 11753, 12604, 13432, 15755, 16790, 19180, 20002, 20440, 22057, 23506, 25208, 31510, 33580, 38360, 40004, 44114, 47012, 50005, 58765, 63020, 67160, 70007, 80008, 88228, 94024, 100010, 110285, 117530, 126040, 140014, 176456, 200020, 220570, 230023, 235060, 280028, 350035, 400040, 441140, 460046, 470120, 560056, 700070, 882280, 920092, 1150115, 1400140, 1610161, 1840184, 2300230, 2800280, 3220322, 4600460, 6440644, 8050805, 9200920, 12881288, 16101610, 32203220, 64406440]

約数ペア:

[(1, 64406440), (2, 32203220), (4, 16101610), (5, 12881288), (7, 9200920), (8, 8050805), (10, 6440644), (14, 4600460), (20, 3220322), (23, 2800280), (28, 2300230), (35, 1840184), (40, 1610161), (46, 1400140), (56, 1150115), (70, 920092), (73, 882280), (92, 700070), (115, 560056), (137, 470120), (140, 460046), (146, 441140), (161, 400040), (184, 350035), (230, 280028), (274, 235060), (280, 230023), (292, 220570), (322, 200020), (365, 176456), (460, 140014), (511, 126040), (548, 117530), (584, 110285), (644, 100010), (685, 94024), (730, 88228), (805, 80008), (920, 70007), (959, 67160), (1022, 63020), (1096, 58765), (1288, 50005), (1370, 47012), (1460, 44114), (1610, 40004), (1679, 38360), (1918, 33580), (2044, 31510), (2555, 25208), (2740, 23506), (2920, 22057), (3151, 20440), (3220, 20002), (3358, 19180), (3836, 16790), (4088, 15755), (4795, 13432), (5110, 12604), (5480, 11753), (6302, 10220), (6440, 10001), (6716, 9590), (7672, 8395)]