278380882

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1\times {\mathrm{151}}^1$

素因数の和:323

約数の個数: 64

約数和(自身を含む): 495500544

約数和(自身を除く): 217119662

約数列:

[1, 2, 13, 17, 26, 34, 43, 86, 97, 151, 194, 221, 302, 442, 559, 731, 1118, 1261, 1462, 1649, 1963, 2522, 2567, 3298, 3926, 4171, 5134, 6493, 8342, 9503, 12986, 14647, 19006, 21437, 29294, 33371, 42874, 54223, 66742, 70907, 84409, 108446, 110381, 141814, 168818, 190411, 220762, 248999, 380822, 497998, 629821, 921791, 1259642, 1434953, 1843582, 2869906, 3236987, 6473974, 8187673, 10706957, 16375346, 21413914, 139190441, 278380882]

約数ペア:

[(1, 278380882), (2, 139190441), (13, 21413914), (17, 16375346), (26, 10706957), (34, 8187673), (43, 6473974), (86, 3236987), (97, 2869906), (151, 1843582), (194, 1434953), (221, 1259642), (302, 921791), (442, 629821), (559, 497998), (731, 380822), (1118, 248999), (1261, 220762), (1462, 190411), (1649, 168818), (1963, 141814), (2522, 110381), (2567, 108446), (3298, 84409), (3926, 70907), (4171, 66742), (5134, 54223), (6493, 42874), (8342, 33371), (9503, 29294), (12986, 21437), (14647, 19006)]