128812880

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{137}}^1$

素因数の和:253

約数の個数: 160

約数和(自身を含む): 364690944

約数和(自身を除く): 235878064

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 35, 40, 46, 56, 70, 73, 80, 92, 112, 115, 137, 140, 146, 161, 184, 230, 274, 280, 292, 322, 365, 368, 460, 511, 548, 560, 584, 644, 685, 730, 805, 920, 959, 1022, 1096, 1168, 1288, 1370, 1460, 1610, 1679, 1840, 1918, 2044, 2192, 2555, 2576, 2740, 2920, 3151, 3220, 3358, 3836, 4088, 4795, 5110, 5480, 5840, 6302, 6440, 6716, 7672, 8176, 8395, 9590, 10001, 10220, 10960, 11753, 12604, 12880, 13432, 15344, 15755, 16790, 19180, 20002, 20440, 22057, 23506, 25208, 26864, 31510, 33580, 38360, 40004, 40880, 44114, 47012, 50005, 50416, 58765, 63020, 67160, 70007, 76720, 80008, 88228, 94024, 100010, 110285, 117530, 126040, 134320, 140014, 160016, 176456, 188048, 200020, 220570, 230023, 235060, 252080, 280028, 350035, 352912, 400040, 441140, 460046, 470120, 560056, 700070, 800080, 882280, 920092, 940240, 1120112, 1150115, 1400140, 1610161, 1764560, 1840184, 2300230, 2800280, 3220322, 3680368, 4600460, 5600560, 6440644, 8050805, 9200920, 12881288, 16101610, 18401840, 25762576, 32203220, 64406440, 128812880]

約数ペア:

[(1, 128812880), (2, 64406440), (4, 32203220), (5, 25762576), (7, 18401840), (8, 16101610), (10, 12881288), (14, 9200920), (16, 8050805), (20, 6440644), (23, 5600560), (28, 4600460), (35, 3680368), (40, 3220322), (46, 2800280), (56, 2300230), (70, 1840184), (73, 1764560), (80, 1610161), (92, 1400140), (112, 1150115), (115, 1120112), (137, 940240), (140, 920092), (146, 882280), (161, 800080), (184, 700070), (230, 560056), (274, 470120), (280, 460046), (292, 441140), (322, 400040), (365, 352912), (368, 350035), (460, 280028), (511, 252080), (548, 235060), (560, 230023), (584, 220570), (644, 200020), (685, 188048), (730, 176456), (805, 160016), (920, 140014), (959, 134320), (1022, 126040), (1096, 117530), (1168, 110285), (1288, 100010), (1370, 94024), (1460, 88228), (1610, 80008), (1679, 76720), (1840, 70007), (1918, 67160), (2044, 63020), (2192, 58765), (2555, 50416), (2576, 50005), (2740, 47012), (2920, 44114), (3151, 40880), (3220, 40004), (3358, 38360), (3836, 33580), (4088, 31510), (4795, 26864), (5110, 25208), (5480, 23506), (5840, 22057), (6302, 20440), (6440, 20002), (6716, 19180), (7672, 16790), (8176, 15755), (8395, 15344), (9590, 13432), (10001, 12880), (10220, 12604), (10960, 11753)]