28642790

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^3\times {\mathrm{53}}^1$

素因数の和:122

約数の個数: 64

約数和(自身を含む): 60886080

約数和(自身を除く): 32243290

約数列:

[1, 2, 5, 10, 11, 17, 22, 34, 53, 55, 85, 106, 110, 170, 187, 265, 289, 374, 530, 578, 583, 901, 935, 1166, 1445, 1802, 1870, 2890, 2915, 3179, 4505, 4913, 5830, 6358, 9010, 9826, 9911, 15317, 15895, 19822, 24565, 30634, 31790, 49130, 49555, 54043, 76585, 99110, 108086, 153170, 168487, 260389, 270215, 336974, 520778, 540430, 842435, 1301945, 1684870, 2603890, 2864279, 5728558, 14321395, 28642790]

約数ペア:

[(1, 28642790), (2, 14321395), (5, 5728558), (10, 2864279), (11, 2603890), (17, 1684870), (22, 1301945), (34, 842435), (53, 540430), (55, 520778), (85, 336974), (106, 270215), (110, 260389), (170, 168487), (187, 153170), (265, 108086), (289, 99110), (374, 76585), (530, 54043), (578, 49555), (583, 49130), (901, 31790), (935, 30634), (1166, 24565), (1445, 19822), (1802, 15895), (1870, 15317), (2890, 9911), (2915, 9826), (3179, 9010), (4505, 6358), (4913, 5830)]