218998640

素因数分解:

$2^4\times 5^1\times 7^3\times {\mathrm{23}}^1\times {\mathrm{347}}^1$

素因数の和:404

約数の個数: 160

約数和(自身を含む): 621388800

約数和(自身を除く): 402390160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 35, 40, 46, 49, 56, 70, 80, 92, 98, 112, 115, 140, 161, 184, 196, 230, 245, 280, 322, 343, 347, 368, 392, 460, 490, 560, 644, 686, 694, 784, 805, 920, 980, 1127, 1288, 1372, 1388, 1610, 1715, 1735, 1840, 1960, 2254, 2429, 2576, 2744, 2776, 3220, 3430, 3470, 3920, 4508, 4858, 5488, 5552, 5635, 6440, 6860, 6940, 7889, 7981, 9016, 9716, 11270, 12145, 12880, 13720, 13880, 15778, 15962, 17003, 18032, 19432, 22540, 24290, 27440, 27760, 31556, 31924, 34006, 38864, 39445, 39905, 45080, 48580, 55867, 63112, 63848, 68012, 78890, 79810, 85015, 90160, 97160, 111734, 119021, 126224, 127696, 136024, 157780, 159620, 170030, 194320, 223468, 238042, 272048, 279335, 315560, 319240, 340060, 391069, 446936, 476084, 558670, 595105, 631120, 638480, 680120, 782138, 893872, 952168, 1117340, 1190210, 1360240, 1564276, 1904336, 1955345, 2234680, 2380420, 2737483, 3128552, 3910690, 4469360, 4760840, 5474966, 6257104, 7821380, 9521680, 10949932, 13687415, 15642760, 21899864, 27374830, 31285520, 43799728, 54749660, 109499320, 218998640]

約数ペア:

[(1, 218998640), (2, 109499320), (4, 54749660), (5, 43799728), (7, 31285520), (8, 27374830), (10, 21899864), (14, 15642760), (16, 13687415), (20, 10949932), (23, 9521680), (28, 7821380), (35, 6257104), (40, 5474966), (46, 4760840), (49, 4469360), (56, 3910690), (70, 3128552), (80, 2737483), (92, 2380420), (98, 2234680), (112, 1955345), (115, 1904336), (140, 1564276), (161, 1360240), (184, 1190210), (196, 1117340), (230, 952168), (245, 893872), (280, 782138), (322, 680120), (343, 638480), (347, 631120), (368, 595105), (392, 558670), (460, 476084), (490, 446936), (560, 391069), (644, 340060), (686, 319240), (694, 315560), (784, 279335), (805, 272048), (920, 238042), (980, 223468), (1127, 194320), (1288, 170030), (1372, 159620), (1388, 157780), (1610, 136024), (1715, 127696), (1735, 126224), (1840, 119021), (1960, 111734), (2254, 97160), (2429, 90160), (2576, 85015), (2744, 79810), (2776, 78890), (3220, 68012), (3430, 63848), (3470, 63112), (3920, 55867), (4508, 48580), (4858, 45080), (5488, 39905), (5552, 39445), (5635, 38864), (6440, 34006), (6860, 31924), (6940, 31556), (7889, 27760), (7981, 27440), (9016, 24290), (9716, 22540), (11270, 19432), (12145, 18032), (12880, 17003), (13720, 15962), (13880, 15778)]