207978760

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1\times {\mathrm{113}}^1$

素因数の和:271

約数の個数: 128

約数和(自身を含む): 531878400

約数和(自身を除く): 323899640

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 47, 55, 88, 89, 94, 110, 113, 178, 188, 220, 226, 235, 356, 376, 440, 445, 452, 470, 517, 565, 712, 890, 904, 940, 979, 1034, 1130, 1243, 1780, 1880, 1958, 2068, 2260, 2486, 2585, 3560, 3916, 4136, 4183, 4520, 4895, 4972, 5170, 5311, 6215, 7832, 8366, 9790, 9944, 10057, 10340, 10622, 12430, 16732, 19580, 20114, 20680, 20915, 21244, 24860, 26555, 33464, 39160, 40228, 41830, 42488, 46013, 49720, 50285, 53110, 58421, 80456, 83660, 92026, 100570, 106220, 110627, 116842, 167320, 184052, 201140, 212440, 221254, 230065, 233684, 292105, 368104, 402280, 442508, 460130, 467368, 472679, 553135, 584210, 885016, 920260, 945358, 1106270, 1168420, 1840520, 1890716, 2212540, 2336840, 2363395, 3781432, 4425080, 4726790, 5199469, 9453580, 10398938, 18907160, 20797876, 25997345, 41595752, 51994690, 103989380, 207978760]

約数ペア:

[(1, 207978760), (2, 103989380), (4, 51994690), (5, 41595752), (8, 25997345), (10, 20797876), (11, 18907160), (20, 10398938), (22, 9453580), (40, 5199469), (44, 4726790), (47, 4425080), (55, 3781432), (88, 2363395), (89, 2336840), (94, 2212540), (110, 1890716), (113, 1840520), (178, 1168420), (188, 1106270), (220, 945358), (226, 920260), (235, 885016), (356, 584210), (376, 553135), (440, 472679), (445, 467368), (452, 460130), (470, 442508), (517, 402280), (565, 368104), (712, 292105), (890, 233684), (904, 230065), (940, 221254), (979, 212440), (1034, 201140), (1130, 184052), (1243, 167320), (1780, 116842), (1880, 110627), (1958, 106220), (2068, 100570), (2260, 92026), (2486, 83660), (2585, 80456), (3560, 58421), (3916, 53110), (4136, 50285), (4183, 49720), (4520, 46013), (4895, 42488), (4972, 41830), (5170, 40228), (5311, 39160), (6215, 33464), (7832, 26555), (8366, 24860), (9790, 21244), (9944, 20915), (10057, 20680), (10340, 20114), (10622, 19580), (12430, 16732)]