6981975

素因数分解:

$3^2\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1$

素因数の和:78

約数の個数: 144

約数和(自身を含む): 17332224

約数和(自身を除く): 10350249

約数列:

[1, 3, 5, 7, 9, 11, 13, 15, 21, 25, 31, 33, 35, 39, 45, 55, 63, 65, 75, 77, 91, 93, 99, 105, 117, 143, 155, 165, 175, 195, 217, 225, 231, 273, 275, 279, 315, 325, 341, 385, 403, 429, 455, 465, 495, 525, 585, 651, 693, 715, 775, 819, 825, 975, 1001, 1023, 1085, 1155, 1209, 1287, 1365, 1395, 1575, 1705, 1925, 1953, 2015, 2145, 2275, 2325, 2387, 2475, 2821, 2925, 3003, 3069, 3255, 3465, 3575, 3627, 4095, 4433, 5005, 5115, 5425, 5775, 6045, 6435, 6825, 6975, 7161, 8463, 8525, 9009, 9765, 10075, 10725, 11935, 13299, 14105, 15015, 15345, 16275, 17325, 18135, 20475, 21483, 22165, 25025, 25389, 25575, 30225, 31031, 32175, 35805, 39897, 42315, 45045, 48825, 59675, 66495, 70525, 75075, 76725, 90675, 93093, 107415, 110825, 126945, 155155, 179025, 199485, 211575, 225225, 279279, 332475, 465465, 537075, 634725, 775775, 997425, 1396395, 2327325, 6981975]

約数ペア:

[(1, 6981975), (3, 2327325), (5, 1396395), (7, 997425), (9, 775775), (11, 634725), (13, 537075), (15, 465465), (21, 332475), (25, 279279), (31, 225225), (33, 211575), (35, 199485), (39, 179025), (45, 155155), (55, 126945), (63, 110825), (65, 107415), (75, 93093), (77, 90675), (91, 76725), (93, 75075), (99, 70525), (105, 66495), (117, 59675), (143, 48825), (155, 45045), (165, 42315), (175, 39897), (195, 35805), (217, 32175), (225, 31031), (231, 30225), (273, 25575), (275, 25389), (279, 25025), (315, 22165), (325, 21483), (341, 20475), (385, 18135), (403, 17325), (429, 16275), (455, 15345), (465, 15015), (495, 14105), (525, 13299), (585, 11935), (651, 10725), (693, 10075), (715, 9765), (775, 9009), (819, 8525), (825, 8463), (975, 7161), (1001, 6975), (1023, 6825), (1085, 6435), (1155, 6045), (1209, 5775), (1287, 5425), (1365, 5115), (1395, 5005), (1575, 4433), (1705, 4095), (1925, 3627), (1953, 3575), (2015, 3465), (2145, 3255), (2275, 3069), (2325, 3003), (2387, 2925), (2475, 2821)]