18713119975

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{89}}^1\times {\mathrm{12959}}^1$

素因数の和:13128

約数の個数: 48

約数和(自身を含む): 26034048000

約数和(自身を除く): 7320928025

約数列:

[1, 5, 11, 25, 55, 59, 89, 275, 295, 445, 649, 979, 1475, 2225, 3245, 4895, 5251, 12959, 16225, 24475, 26255, 57761, 64795, 131275, 142549, 288805, 323975, 712745, 764581, 1153351, 1444025, 3563725, 3822905, 5766755, 8410391, 12686861, 19114525, 28833775, 42051955, 63434305, 68047709, 210259775, 317171525, 340238545, 748524799, 1701192725, 3742623995, 18713119975]

約数ペア:

[(1, 18713119975), (5, 3742623995), (11, 1701192725), (25, 748524799), (55, 340238545), (59, 317171525), (89, 210259775), (275, 68047709), (295, 63434305), (445, 42051955), (649, 28833775), (979, 19114525), (1475, 12686861), (2225, 8410391), (3245, 5766755), (4895, 3822905), (5251, 3563725), (12959, 1444025), (16225, 1153351), (24475, 764581), (26255, 712745), (57761, 323975), (64795, 288805), (131275, 142549)]