305191280

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{1129}}^1$

素因数の和:1282

約数の個数: 80

約数和(自身を含む): 739833600

約数和(自身を除く): 434642320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 109, 124, 155, 218, 248, 310, 436, 496, 545, 620, 872, 1090, 1129, 1240, 1744, 2180, 2258, 2480, 3379, 4360, 4516, 5645, 6758, 8720, 9032, 11290, 13516, 16895, 18064, 22580, 27032, 33790, 34999, 45160, 54064, 67580, 69998, 90320, 123061, 135160, 139996, 174995, 246122, 270320, 279992, 349990, 492244, 559984, 615305, 699980, 984488, 1230610, 1399960, 1968976, 2461220, 2799920, 3814891, 4922440, 7629782, 9844880, 15259564, 19074455, 30519128, 38148910, 61038256, 76297820, 152595640, 305191280]

約数ペア:

[(1, 305191280), (2, 152595640), (4, 76297820), (5, 61038256), (8, 38148910), (10, 30519128), (16, 19074455), (20, 15259564), (31, 9844880), (40, 7629782), (62, 4922440), (80, 3814891), (109, 2799920), (124, 2461220), (155, 1968976), (218, 1399960), (248, 1230610), (310, 984488), (436, 699980), (496, 615305), (545, 559984), (620, 492244), (872, 349990), (1090, 279992), (1129, 270320), (1240, 246122), (1744, 174995), (2180, 139996), (2258, 135160), (2480, 123061), (3379, 90320), (4360, 69998), (4516, 67580), (5645, 54064), (6758, 45160), (8720, 34999), (9032, 33790), (11290, 27032), (13516, 22580), (16895, 18064)]