28956440

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{439}}^1$

素因数の和:564

約数の個数: 64

約数和(自身を含む): 69854400

約数和(自身を除く): 40897960

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 97, 136, 170, 194, 340, 388, 439, 485, 680, 776, 878, 970, 1649, 1756, 1940, 2195, 3298, 3512, 3880, 4390, 6596, 7463, 8245, 8780, 13192, 14926, 16490, 17560, 29852, 32980, 37315, 42583, 59704, 65960, 74630, 85166, 149260, 170332, 212915, 298520, 340664, 425830, 723911, 851660, 1447822, 1703320, 2895644, 3619555, 5791288, 7239110, 14478220, 28956440]

約数ペア:

[(1, 28956440), (2, 14478220), (4, 7239110), (5, 5791288), (8, 3619555), (10, 2895644), (17, 1703320), (20, 1447822), (34, 851660), (40, 723911), (68, 425830), (85, 340664), (97, 298520), (136, 212915), (170, 170332), (194, 149260), (340, 85166), (388, 74630), (439, 65960), (485, 59704), (680, 42583), (776, 37315), (878, 32980), (970, 29852), (1649, 17560), (1756, 16490), (1940, 14926), (2195, 13192), (3298, 8780), (3512, 8245), (3880, 7463), (4390, 6596)]