38640840

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{293}}^1$

素因数の和:471

約数の個数: 128

約数和(自身を含む): 133781760

約数和(自身を除く): 95140920

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, 84, 105, 120, 140, 157, 168, 210, 280, 293, 314, 420, 471, 586, 628, 785, 840, 879, 942, 1099, 1172, 1256, 1465, 1570, 1758, 1884, 2051, 2198, 2344, 2355, 2930, 3140, 3297, 3516, 3768, 4102, 4395, 4396, 4710, 5495, 5860, 6153, 6280, 6594, 7032, 8204, 8790, 8792, 9420, 10255, 10990, 11720, 12306, 13188, 16408, 16485, 17580, 18840, 20510, 21980, 24612, 26376, 30765, 32970, 35160, 41020, 43960, 46001, 49224, 61530, 65940, 82040, 92002, 123060, 131880, 138003, 184004, 230005, 246120, 276006, 322007, 368008, 460010, 552012, 644014, 690015, 920020, 966021, 1104024, 1288028, 1380030, 1610035, 1840040, 1932042, 2576056, 2760060, 3220070, 3864084, 4830105, 5520120, 6440140, 7728168, 9660210, 12880280, 19320420, 38640840]

約数ペア:

[(1, 38640840), (2, 19320420), (3, 12880280), (4, 9660210), (5, 7728168), (6, 6440140), (7, 5520120), (8, 4830105), (10, 3864084), (12, 3220070), (14, 2760060), (15, 2576056), (20, 1932042), (21, 1840040), (24, 1610035), (28, 1380030), (30, 1288028), (35, 1104024), (40, 966021), (42, 920020), (56, 690015), (60, 644014), (70, 552012), (84, 460010), (105, 368008), (120, 322007), (140, 276006), (157, 246120), (168, 230005), (210, 184004), (280, 138003), (293, 131880), (314, 123060), (420, 92002), (471, 82040), (586, 65940), (628, 61530), (785, 49224), (840, 46001), (879, 43960), (942, 41020), (1099, 35160), (1172, 32970), (1256, 30765), (1465, 26376), (1570, 24612), (1758, 21980), (1884, 20510), (2051, 18840), (2198, 17580), (2344, 16485), (2355, 16408), (2930, 13188), (3140, 12306), (3297, 11720), (3516, 10990), (3768, 10255), (4102, 9420), (4395, 8792), (4396, 8790), (4710, 8204), (5495, 7032), (5860, 6594), (6153, 6280)]