20017568

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{1187}}^1$

素因数の和:1245

約数の個数: 48

約数和(自身を含む): 43110144

約数和(自身を除く): 23092576

約数列:

[1, 2, 4, 8, 16, 17, 31, 32, 34, 62, 68, 124, 136, 248, 272, 496, 527, 544, 992, 1054, 1187, 2108, 2374, 4216, 4748, 8432, 9496, 16864, 18992, 20179, 36797, 37984, 40358, 73594, 80716, 147188, 161432, 294376, 322864, 588752, 625549, 645728, 1177504, 1251098, 2502196, 5004392, 10008784, 20017568]

約数ペア:

[(1, 20017568), (2, 10008784), (4, 5004392), (8, 2502196), (16, 1251098), (17, 1177504), (31, 645728), (32, 625549), (34, 588752), (62, 322864), (68, 294376), (124, 161432), (136, 147188), (248, 80716), (272, 73594), (496, 40358), (527, 37984), (544, 36797), (992, 20179), (1054, 18992), (1187, 16864), (2108, 9496), (2374, 8432), (4216, 4748)]