20087880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{229}}^1$

素因数の和:303

約数の個数: 128

約数和(自身を含む): 65577600

約数和(自身を除く): 45489720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 34, 40, 43, 51, 60, 68, 85, 86, 102, 120, 129, 136, 170, 172, 204, 215, 229, 255, 258, 340, 344, 408, 430, 458, 510, 516, 645, 680, 687, 731, 860, 916, 1020, 1032, 1145, 1290, 1374, 1462, 1720, 1832, 2040, 2193, 2290, 2580, 2748, 2924, 3435, 3655, 3893, 4386, 4580, 5160, 5496, 5848, 6870, 7310, 7786, 8772, 9160, 9847, 10965, 11679, 13740, 14620, 15572, 17544, 19465, 19694, 21930, 23358, 27480, 29240, 29541, 31144, 38930, 39388, 43860, 46716, 49235, 58395, 59082, 77860, 78776, 87720, 93432, 98470, 116790, 118164, 147705, 155720, 167399, 196940, 233580, 236328, 295410, 334798, 393880, 467160, 502197, 590820, 669596, 836995, 1004394, 1181640, 1339192, 1673990, 2008788, 2510985, 3347980, 4017576, 5021970, 6695960, 10043940, 20087880]

約数ペア:

[(1, 20087880), (2, 10043940), (3, 6695960), (4, 5021970), (5, 4017576), (6, 3347980), (8, 2510985), (10, 2008788), (12, 1673990), (15, 1339192), (17, 1181640), (20, 1004394), (24, 836995), (30, 669596), (34, 590820), (40, 502197), (43, 467160), (51, 393880), (60, 334798), (68, 295410), (85, 236328), (86, 233580), (102, 196940), (120, 167399), (129, 155720), (136, 147705), (170, 118164), (172, 116790), (204, 98470), (215, 93432), (229, 87720), (255, 78776), (258, 77860), (340, 59082), (344, 58395), (408, 49235), (430, 46716), (458, 43860), (510, 39388), (516, 38930), (645, 31144), (680, 29541), (687, 29240), (731, 27480), (860, 23358), (916, 21930), (1020, 19694), (1032, 19465), (1145, 17544), (1290, 15572), (1374, 14620), (1462, 13740), (1720, 11679), (1832, 10965), (2040, 9847), (2193, 9160), (2290, 8772), (2580, 7786), (2748, 7310), (2924, 6870), (3435, 5848), (3655, 5496), (3893, 5160), (4386, 4580)]