18027800

素因数分解:

$2^3\times 5^2\times 7^1\times {\mathrm{79}}^1\times {\mathrm{163}}^1$

素因数の和:265

約数の個数: 96

約数和(自身を含む): 48806400

約数和(自身を除く): 30778600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 50, 56, 70, 79, 100, 140, 158, 163, 175, 200, 280, 316, 326, 350, 395, 553, 632, 652, 700, 790, 815, 1106, 1141, 1304, 1400, 1580, 1630, 1975, 2212, 2282, 2765, 3160, 3260, 3950, 4075, 4424, 4564, 5530, 5705, 6520, 7900, 8150, 9128, 11060, 11410, 12877, 13825, 15800, 16300, 22120, 22820, 25754, 27650, 28525, 32600, 45640, 51508, 55300, 57050, 64385, 90139, 103016, 110600, 114100, 128770, 180278, 228200, 257540, 321925, 360556, 450695, 515080, 643850, 721112, 901390, 1287700, 1802780, 2253475, 2575400, 3605560, 4506950, 9013900, 18027800]

約数ペア:

[(1, 18027800), (2, 9013900), (4, 4506950), (5, 3605560), (7, 2575400), (8, 2253475), (10, 1802780), (14, 1287700), (20, 901390), (25, 721112), (28, 643850), (35, 515080), (40, 450695), (50, 360556), (56, 321925), (70, 257540), (79, 228200), (100, 180278), (140, 128770), (158, 114100), (163, 110600), (175, 103016), (200, 90139), (280, 64385), (316, 57050), (326, 55300), (350, 51508), (395, 45640), (553, 32600), (632, 28525), (652, 27650), (700, 25754), (790, 22820), (815, 22120), (1106, 16300), (1141, 15800), (1304, 13825), (1400, 12877), (1580, 11410), (1630, 11060), (1975, 9128), (2212, 8150), (2282, 7900), (2765, 6520), (3160, 5705), (3260, 5530), (3950, 4564), (4075, 4424)]