287514920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{277}}^1\times {\mathrm{337}}^1$

素因数の和:643

約数の個数: 128

約数和(自身を含む): 811848960

約数和(自身を除く): 524334040

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 88, 110, 140, 154, 220, 277, 280, 308, 337, 385, 440, 554, 616, 674, 770, 1108, 1348, 1385, 1540, 1685, 1939, 2216, 2359, 2696, 2770, 3047, 3080, 3370, 3707, 3878, 4718, 5540, 6094, 6740, 7414, 7756, 9436, 9695, 11080, 11795, 12188, 13480, 14828, 15235, 15512, 18535, 18872, 19390, 21329, 23590, 24376, 25949, 29656, 30470, 37070, 38780, 42658, 47180, 51898, 60940, 74140, 77560, 85316, 93349, 94360, 103796, 106645, 121880, 129745, 148280, 170632, 186698, 207592, 213290, 259490, 373396, 426580, 466745, 518980, 653443, 746792, 853160, 933490, 1026839, 1037960, 1306886, 1866980, 2053678, 2613772, 3267215, 3733960, 4107356, 5134195, 5227544, 6534430, 7187873, 8214712, 10268390, 13068860, 14375746, 20536780, 26137720, 28751492, 35939365, 41073560, 57502984, 71878730, 143757460, 287514920]

約数ペア:

[(1, 287514920), (2, 143757460), (4, 71878730), (5, 57502984), (7, 41073560), (8, 35939365), (10, 28751492), (11, 26137720), (14, 20536780), (20, 14375746), (22, 13068860), (28, 10268390), (35, 8214712), (40, 7187873), (44, 6534430), (55, 5227544), (56, 5134195), (70, 4107356), (77, 3733960), (88, 3267215), (110, 2613772), (140, 2053678), (154, 1866980), (220, 1306886), (277, 1037960), (280, 1026839), (308, 933490), (337, 853160), (385, 746792), (440, 653443), (554, 518980), (616, 466745), (674, 426580), (770, 373396), (1108, 259490), (1348, 213290), (1385, 207592), (1540, 186698), (1685, 170632), (1939, 148280), (2216, 129745), (2359, 121880), (2696, 106645), (2770, 103796), (3047, 94360), (3080, 93349), (3370, 85316), (3707, 77560), (3878, 74140), (4718, 60940), (5540, 51898), (6094, 47180), (6740, 42658), (7414, 38780), (7756, 37070), (9436, 30470), (9695, 29656), (11080, 25949), (11795, 24376), (12188, 23590), (13480, 21329), (14828, 19390), (15235, 18872), (15512, 18535)]