129130020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{401}}^1\times {\mathrm{1789}}^1$

素因数の和:2205

約数の個数: 72

約数和(自身を含む): 392890680

約数和(自身を除く): 263760660

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 401, 802, 1203, 1604, 1789, 2005, 2406, 3578, 3609, 4010, 4812, 5367, 6015, 7156, 7218, 8020, 8945, 10734, 12030, 14436, 16101, 17890, 18045, 21468, 24060, 26835, 32202, 35780, 36090, 53670, 64404, 72180, 80505, 107340, 161010, 322020, 717389, 1434778, 2152167, 2869556, 3586945, 4304334, 6456501, 7173890, 8608668, 10760835, 12913002, 14347780, 21521670, 25826004, 32282505, 43043340, 64565010, 129130020]

約数ペア:

[(1, 129130020), (2, 64565010), (3, 43043340), (4, 32282505), (5, 25826004), (6, 21521670), (9, 14347780), (10, 12913002), (12, 10760835), (15, 8608668), (18, 7173890), (20, 6456501), (30, 4304334), (36, 3586945), (45, 2869556), (60, 2152167), (90, 1434778), (180, 717389), (401, 322020), (802, 161010), (1203, 107340), (1604, 80505), (1789, 72180), (2005, 64404), (2406, 53670), (3578, 36090), (3609, 35780), (4010, 32202), (4812, 26835), (5367, 24060), (6015, 21468), (7156, 18045), (7218, 17890), (8020, 16101), (8945, 14436), (10734, 12030)]