289897760

素因数分解:

$2^5\times 5^1\times {\mathrm{131}}^1\times {\mathrm{13831}}^1$

素因数の和:13977

約数の個数: 48

約数和(自身を含む): 690161472

約数和(自身を除く): 400263712

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 131, 160, 262, 524, 655, 1048, 1310, 2096, 2620, 4192, 5240, 10480, 13831, 20960, 27662, 55324, 69155, 110648, 138310, 221296, 276620, 442592, 553240, 1106480, 1811861, 2212960, 3623722, 7247444, 9059305, 14494888, 18118610, 28989776, 36237220, 57979552, 72474440, 144948880, 289897760]

約数ペア:

[(1, 289897760), (2, 144948880), (4, 72474440), (5, 57979552), (8, 36237220), (10, 28989776), (16, 18118610), (20, 14494888), (32, 9059305), (40, 7247444), (80, 3623722), (131, 2212960), (160, 1811861), (262, 1106480), (524, 553240), (655, 442592), (1048, 276620), (1310, 221296), (2096, 138310), (2620, 110648), (4192, 69155), (5240, 55324), (10480, 27662), (13831, 20960)]