72009520

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^2\times {\mathrm{43}}^1\times {\mathrm{173}}^1$

素因数の和:251

約数の個数: 120

約数和(自身を含む): 189394128

約数和(自身を除く): 117384608

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 43, 44, 55, 80, 86, 88, 110, 121, 172, 173, 176, 215, 220, 242, 344, 346, 430, 440, 473, 484, 605, 688, 692, 860, 865, 880, 946, 968, 1210, 1384, 1720, 1730, 1892, 1903, 1936, 2365, 2420, 2768, 3440, 3460, 3784, 3806, 4730, 4840, 5203, 6920, 7439, 7568, 7612, 9460, 9515, 9680, 10406, 13840, 14878, 15224, 18920, 19030, 20812, 20933, 26015, 29756, 30448, 37195, 37840, 38060, 41624, 41866, 52030, 59512, 74390, 76120, 81829, 83248, 83732, 104060, 104665, 119024, 148780, 152240, 163658, 167464, 208120, 209330, 297560, 327316, 334928, 409145, 416240, 418660, 595120, 654632, 818290, 837320, 900119, 1309264, 1636580, 1674640, 1800238, 3273160, 3600476, 4500595, 6546320, 7200952, 9001190, 14401904, 18002380, 36004760, 72009520]

約数ペア:

[(1, 72009520), (2, 36004760), (4, 18002380), (5, 14401904), (8, 9001190), (10, 7200952), (11, 6546320), (16, 4500595), (20, 3600476), (22, 3273160), (40, 1800238), (43, 1674640), (44, 1636580), (55, 1309264), (80, 900119), (86, 837320), (88, 818290), (110, 654632), (121, 595120), (172, 418660), (173, 416240), (176, 409145), (215, 334928), (220, 327316), (242, 297560), (344, 209330), (346, 208120), (430, 167464), (440, 163658), (473, 152240), (484, 148780), (605, 119024), (688, 104665), (692, 104060), (860, 83732), (865, 83248), (880, 81829), (946, 76120), (968, 74390), (1210, 59512), (1384, 52030), (1720, 41866), (1730, 41624), (1892, 38060), (1903, 37840), (1936, 37195), (2365, 30448), (2420, 29756), (2768, 26015), (3440, 20933), (3460, 20812), (3784, 19030), (3806, 18920), (4730, 15224), (4840, 14878), (5203, 13840), (6920, 10406), (7439, 9680), (7568, 9515), (7612, 9460)]