209845280

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{179}}^1\times {\mathrm{431}}^1$

素因数の和:642

約数の個数: 96

約数和(自身を含む): 529079040

約数和(自身を除く): 319233760

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 68, 80, 85, 136, 160, 170, 179, 272, 340, 358, 431, 544, 680, 716, 862, 895, 1360, 1432, 1724, 1790, 2155, 2720, 2864, 3043, 3448, 3580, 4310, 5728, 6086, 6896, 7160, 7327, 8620, 12172, 13792, 14320, 14654, 15215, 17240, 24344, 28640, 29308, 30430, 34480, 36635, 48688, 58616, 60860, 68960, 73270, 77149, 97376, 117232, 121720, 146540, 154298, 234464, 243440, 293080, 308596, 385745, 486880, 586160, 617192, 771490, 1172320, 1234384, 1311533, 1542980, 2468768, 2623066, 3085960, 5246132, 6171920, 6557665, 10492264, 12343840, 13115330, 20984528, 26230660, 41969056, 52461320, 104922640, 209845280]

約数ペア:

[(1, 209845280), (2, 104922640), (4, 52461320), (5, 41969056), (8, 26230660), (10, 20984528), (16, 13115330), (17, 12343840), (20, 10492264), (32, 6557665), (34, 6171920), (40, 5246132), (68, 3085960), (80, 2623066), (85, 2468768), (136, 1542980), (160, 1311533), (170, 1234384), (179, 1172320), (272, 771490), (340, 617192), (358, 586160), (431, 486880), (544, 385745), (680, 308596), (716, 293080), (862, 243440), (895, 234464), (1360, 154298), (1432, 146540), (1724, 121720), (1790, 117232), (2155, 97376), (2720, 77149), (2864, 73270), (3043, 68960), (3448, 60860), (3580, 58616), (4310, 48688), (5728, 36635), (6086, 34480), (6896, 30430), (7160, 29308), (7327, 28640), (8620, 24344), (12172, 17240), (13792, 15215), (14320, 14654)]