21292363600

素因数分解:

$2^4\times 5^2\times {\mathrm{739}}^1\times {\mathrm{72031}}^1$

素因数の和:72788

約数の個数: 60

約数和(自身を含む): 51224836480

約数和(自身を除く): 29932472880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 739, 1478, 2956, 3695, 5912, 7390, 11824, 14780, 18475, 29560, 36950, 59120, 72031, 73900, 144062, 147800, 288124, 295600, 360155, 576248, 720310, 1152496, 1440620, 1800775, 2881240, 3601550, 5762480, 7203100, 14406200, 28812400, 53230909, 106461818, 212923636, 266154545, 425847272, 532309090, 851694544, 1064618180, 1330772725, 2129236360, 2661545450, 4258472720, 5323090900, 10646181800, 21292363600]

約数ペア:

[(1, 21292363600), (2, 10646181800), (4, 5323090900), (5, 4258472720), (8, 2661545450), (10, 2129236360), (16, 1330772725), (20, 1064618180), (25, 851694544), (40, 532309090), (50, 425847272), (80, 266154545), (100, 212923636), (200, 106461818), (400, 53230909), (739, 28812400), (1478, 14406200), (2956, 7203100), (3695, 5762480), (5912, 3601550), (7390, 2881240), (11824, 1800775), (14780, 1440620), (18475, 1152496), (29560, 720310), (36950, 576248), (59120, 360155), (72031, 295600), (73900, 288124), (144062, 147800)]