19927808

素因数分解:

$2^8\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{241}}^1$

素因数の和:293

約数の個数: 72

約数和(自身を含む): 44518320

約数和(自身を除く): 24590512

約数列:

[1, 2, 4, 8, 16, 17, 19, 32, 34, 38, 64, 68, 76, 128, 136, 152, 241, 256, 272, 304, 323, 482, 544, 608, 646, 964, 1088, 1216, 1292, 1928, 2176, 2432, 2584, 3856, 4097, 4352, 4579, 4864, 5168, 7712, 8194, 9158, 10336, 15424, 16388, 18316, 20672, 30848, 32776, 36632, 41344, 61696, 65552, 73264, 77843, 82688, 131104, 146528, 155686, 262208, 293056, 311372, 524416, 586112, 622744, 1048832, 1172224, 1245488, 2490976, 4981952, 9963904, 19927808]

約数ペア:

[(1, 19927808), (2, 9963904), (4, 4981952), (8, 2490976), (16, 1245488), (17, 1172224), (19, 1048832), (32, 622744), (34, 586112), (38, 524416), (64, 311372), (68, 293056), (76, 262208), (128, 155686), (136, 146528), (152, 131104), (241, 82688), (256, 77843), (272, 73264), (304, 65552), (323, 61696), (482, 41344), (544, 36632), (608, 32776), (646, 30848), (964, 20672), (1088, 18316), (1216, 16388), (1292, 15424), (1928, 10336), (2176, 9158), (2432, 8194), (2584, 7712), (3856, 5168), (4097, 4864), (4352, 4579)]