20618280

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{1123}}^1$

素因数の和:1160

約数の個数: 128

約数和(自身を含む): 72835200

約数和(自身を除く): 52216920

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 17, 18, 20, 24, 27, 30, 34, 36, 40, 45, 51, 54, 60, 68, 72, 85, 90, 102, 108, 120, 135, 136, 153, 170, 180, 204, 216, 255, 270, 306, 340, 360, 408, 459, 510, 540, 612, 680, 765, 918, 1020, 1080, 1123, 1224, 1530, 1836, 2040, 2246, 2295, 3060, 3369, 3672, 4492, 4590, 5615, 6120, 6738, 8984, 9180, 10107, 11230, 13476, 16845, 18360, 19091, 20214, 22460, 26952, 30321, 33690, 38182, 40428, 44920, 50535, 57273, 60642, 67380, 76364, 80856, 95455, 101070, 114546, 121284, 134760, 151605, 152728, 171819, 190910, 202140, 229092, 242568, 286365, 303210, 343638, 381820, 404280, 458184, 515457, 572730, 606420, 687276, 763640, 859095, 1030914, 1145460, 1212840, 1374552, 1718190, 2061828, 2290920, 2577285, 3436380, 4123656, 5154570, 6872760, 10309140, 20618280]

約数ペア:

[(1, 20618280), (2, 10309140), (3, 6872760), (4, 5154570), (5, 4123656), (6, 3436380), (8, 2577285), (9, 2290920), (10, 2061828), (12, 1718190), (15, 1374552), (17, 1212840), (18, 1145460), (20, 1030914), (24, 859095), (27, 763640), (30, 687276), (34, 606420), (36, 572730), (40, 515457), (45, 458184), (51, 404280), (54, 381820), (60, 343638), (68, 303210), (72, 286365), (85, 242568), (90, 229092), (102, 202140), (108, 190910), (120, 171819), (135, 152728), (136, 151605), (153, 134760), (170, 121284), (180, 114546), (204, 101070), (216, 95455), (255, 80856), (270, 76364), (306, 67380), (340, 60642), (360, 57273), (408, 50535), (459, 44920), (510, 40428), (540, 38182), (612, 33690), (680, 30321), (765, 26952), (918, 22460), (1020, 20214), (1080, 19091), (1123, 18360), (1224, 16845), (1530, 13476), (1836, 11230), (2040, 10107), (2246, 9180), (2295, 8984), (3060, 6738), (3369, 6120), (3672, 5615), (4492, 4590)]