208843520

素因数分解:

$2^8\times 5^1\times {\mathrm{167}}^1\times {\mathrm{977}}^1$

素因数の和:1165

約数の個数: 72

約数和(自身を含む): 503756064

約数和(自身を除く): 294912544

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 167, 256, 320, 334, 640, 668, 835, 977, 1280, 1336, 1670, 1954, 2672, 3340, 3908, 4885, 5344, 6680, 7816, 9770, 10688, 13360, 15632, 19540, 21376, 26720, 31264, 39080, 42752, 53440, 62528, 78160, 106880, 125056, 156320, 163159, 213760, 250112, 312640, 326318, 625280, 652636, 815795, 1250560, 1305272, 1631590, 2610544, 3263180, 5221088, 6526360, 10442176, 13052720, 20884352, 26105440, 41768704, 52210880, 104421760, 208843520]

約数ペア:

[(1, 208843520), (2, 104421760), (4, 52210880), (5, 41768704), (8, 26105440), (10, 20884352), (16, 13052720), (20, 10442176), (32, 6526360), (40, 5221088), (64, 3263180), (80, 2610544), (128, 1631590), (160, 1305272), (167, 1250560), (256, 815795), (320, 652636), (334, 625280), (640, 326318), (668, 312640), (835, 250112), (977, 213760), (1280, 163159), (1336, 156320), (1670, 125056), (1954, 106880), (2672, 78160), (3340, 62528), (3908, 53440), (4885, 42752), (5344, 39080), (6680, 31264), (7816, 26720), (9770, 21376), (10688, 19540), (13360, 15632)]