280626880

素因数分解:

$2^6\times 5^1\times {\mathrm{31}}^1\times {\mathrm{28289}}^1$

素因数の和:28337

約数の個数: 56

約数和(自身を含む): 689823360

約数和(自身を除く): 409196480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 155, 160, 248, 310, 320, 496, 620, 992, 1240, 1984, 2480, 4960, 9920, 28289, 56578, 113156, 141445, 226312, 282890, 452624, 565780, 876959, 905248, 1131560, 1753918, 1810496, 2263120, 3507836, 4384795, 4526240, 7015672, 8769590, 9052480, 14031344, 17539180, 28062688, 35078360, 56125376, 70156720, 140313440, 280626880]

約数ペア:

[(1, 280626880), (2, 140313440), (4, 70156720), (5, 56125376), (8, 35078360), (10, 28062688), (16, 17539180), (20, 14031344), (31, 9052480), (32, 8769590), (40, 7015672), (62, 4526240), (64, 4384795), (80, 3507836), (124, 2263120), (155, 1810496), (160, 1753918), (248, 1131560), (310, 905248), (320, 876959), (496, 565780), (620, 452624), (992, 282890), (1240, 226312), (1984, 141445), (2480, 113156), (4960, 56578), (9920, 28289)]