78722800

素因数分解:

$2^4\times 5^2\times {\mathrm{13}}^1\times {\mathrm{15139}}^1$

素因数の和:15170

約数の個数: 60

約数和(自身を含む): 203693560

約数和(自身を除く): 124970760

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 40, 50, 52, 65, 80, 100, 104, 130, 200, 208, 260, 325, 400, 520, 650, 1040, 1300, 2600, 5200, 15139, 30278, 60556, 75695, 121112, 151390, 196807, 242224, 302780, 378475, 393614, 605560, 756950, 787228, 984035, 1211120, 1513900, 1574456, 1968070, 3027800, 3148912, 3936140, 4920175, 6055600, 7872280, 9840350, 15744560, 19680700, 39361400, 78722800]

約数ペア:

[(1, 78722800), (2, 39361400), (4, 19680700), (5, 15744560), (8, 9840350), (10, 7872280), (13, 6055600), (16, 4920175), (20, 3936140), (25, 3148912), (26, 3027800), (40, 1968070), (50, 1574456), (52, 1513900), (65, 1211120), (80, 984035), (100, 787228), (104, 756950), (130, 605560), (200, 393614), (208, 378475), (260, 302780), (325, 242224), (400, 196807), (520, 151390), (650, 121112), (1040, 75695), (1300, 60556), (2600, 30278), (5200, 15139)]