785315340

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{256639}}^1$

素因数の和:256671

約数の個数: 72

約数和(自身を含む): 2522257920

約数和(自身を除く): 1736942580

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 30, 34, 36, 45, 51, 60, 68, 85, 90, 102, 153, 170, 180, 204, 255, 306, 340, 510, 612, 765, 1020, 1530, 3060, 256639, 513278, 769917, 1026556, 1283195, 1539834, 2309751, 2566390, 3079668, 3849585, 4362863, 4619502, 5132780, 7699170, 8725726, 9239004, 11548755, 13088589, 15398340, 17451452, 21814315, 23097510, 26177178, 39265767, 43628630, 46195020, 52354356, 65442945, 78531534, 87257260, 130885890, 157063068, 196328835, 261771780, 392657670, 785315340]

約数ペア:

[(1, 785315340), (2, 392657670), (3, 261771780), (4, 196328835), (5, 157063068), (6, 130885890), (9, 87257260), (10, 78531534), (12, 65442945), (15, 52354356), (17, 46195020), (18, 43628630), (20, 39265767), (30, 26177178), (34, 23097510), (36, 21814315), (45, 17451452), (51, 15398340), (60, 13088589), (68, 11548755), (85, 9239004), (90, 8725726), (102, 7699170), (153, 5132780), (170, 4619502), (180, 4362863), (204, 3849585), (255, 3079668), (306, 2566390), (340, 2309751), (510, 1539834), (612, 1283195), (765, 1026556), (1020, 769917), (1530, 513278), (3060, 256639)]