208631640

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{248371}}^1$

素因数の和:248392

約数の個数: 64

約数和(自身を含む): 715311360

約数和(自身を除く): 506679720

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 248371, 496742, 745113, 993484, 1241855, 1490226, 1738597, 1986968, 2483710, 2980452, 3477194, 3725565, 4967420, 5215791, 5960904, 6954388, 7451130, 8692985, 9934840, 10431582, 13908776, 14902260, 17385970, 20863164, 26078955, 29804520, 34771940, 41726328, 52157910, 69543880, 104315820, 208631640]

約数ペア:

[(1, 208631640), (2, 104315820), (3, 69543880), (4, 52157910), (5, 41726328), (6, 34771940), (7, 29804520), (8, 26078955), (10, 20863164), (12, 17385970), (14, 14902260), (15, 13908776), (20, 10431582), (21, 9934840), (24, 8692985), (28, 7451130), (30, 6954388), (35, 5960904), (40, 5215791), (42, 4967420), (56, 3725565), (60, 3477194), (70, 2980452), (84, 2483710), (105, 1986968), (120, 1738597), (140, 1490226), (168, 1241855), (210, 993484), (280, 745113), (420, 496742), (840, 248371)]