281520120

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{4591}}^1$

素因数の和:4685

約数の個数: 128

約数和(自身を含む): 978647040

約数和(自身を除く): 697126920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 73, 84, 105, 120, 140, 146, 168, 210, 219, 280, 292, 365, 420, 438, 511, 584, 730, 840, 876, 1022, 1095, 1460, 1533, 1752, 2044, 2190, 2555, 2920, 3066, 4088, 4380, 4591, 5110, 6132, 7665, 8760, 9182, 10220, 12264, 13773, 15330, 18364, 20440, 22955, 27546, 30660, 32137, 36728, 45910, 55092, 61320, 64274, 68865, 91820, 96411, 110184, 128548, 137730, 160685, 183640, 192822, 257096, 275460, 321370, 335143, 385644, 482055, 550920, 642740, 670286, 771288, 964110, 1005429, 1285480, 1340572, 1675715, 1928220, 2010858, 2346001, 2681144, 3351430, 3856440, 4021716, 4692002, 5027145, 6702860, 7038003, 8043432, 9384004, 10054290, 11730005, 13405720, 14076006, 18768008, 20108580, 23460010, 28152012, 35190015, 40217160, 46920020, 56304024, 70380030, 93840040, 140760060, 281520120]

約数ペア:

[(1, 281520120), (2, 140760060), (3, 93840040), (4, 70380030), (5, 56304024), (6, 46920020), (7, 40217160), (8, 35190015), (10, 28152012), (12, 23460010), (14, 20108580), (15, 18768008), (20, 14076006), (21, 13405720), (24, 11730005), (28, 10054290), (30, 9384004), (35, 8043432), (40, 7038003), (42, 6702860), (56, 5027145), (60, 4692002), (70, 4021716), (73, 3856440), (84, 3351430), (105, 2681144), (120, 2346001), (140, 2010858), (146, 1928220), (168, 1675715), (210, 1340572), (219, 1285480), (280, 1005429), (292, 964110), (365, 771288), (420, 670286), (438, 642740), (511, 550920), (584, 482055), (730, 385644), (840, 335143), (876, 321370), (1022, 275460), (1095, 257096), (1460, 192822), (1533, 183640), (1752, 160685), (2044, 137730), (2190, 128548), (2555, 110184), (2920, 96411), (3066, 91820), (4088, 68865), (4380, 64274), (4591, 61320), (5110, 55092), (6132, 45910), (7665, 36728), (8760, 32137), (9182, 30660), (10220, 27546), (12264, 22955), (13773, 20440), (15330, 18364)]