204977920

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{22877}}^1$

素因数の和:22905

約数の個数: 72

約数和(自身を含む): 561151584

約数和(自身を除く): 356173664

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 256, 280, 320, 448, 560, 640, 896, 1120, 1280, 1792, 2240, 4480, 8960, 22877, 45754, 91508, 114385, 160139, 183016, 228770, 320278, 366032, 457540, 640556, 732064, 800695, 915080, 1281112, 1464128, 1601390, 1830160, 2562224, 2928256, 3202780, 3660320, 5124448, 5856512, 6405560, 7320640, 10248896, 12811120, 14641280, 20497792, 25622240, 29282560, 40995584, 51244480, 102488960, 204977920]

約数ペア:

[(1, 204977920), (2, 102488960), (4, 51244480), (5, 40995584), (7, 29282560), (8, 25622240), (10, 20497792), (14, 14641280), (16, 12811120), (20, 10248896), (28, 7320640), (32, 6405560), (35, 5856512), (40, 5124448), (56, 3660320), (64, 3202780), (70, 2928256), (80, 2562224), (112, 1830160), (128, 1601390), (140, 1464128), (160, 1281112), (224, 915080), (256, 800695), (280, 732064), (320, 640556), (448, 457540), (560, 366032), (640, 320278), (896, 228770), (1120, 183016), (1280, 160139), (1792, 114385), (2240, 91508), (4480, 45754), (8960, 22877)]