221205904

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{1861}}^1$

素因数の和:1928

約数の個数: 80

約数和(自身を含む): 498718080

約数和(自身を除く): 277512176

約数列:

[1, 2, 4, 8, 16, 17, 19, 23, 34, 38, 46, 68, 76, 92, 136, 152, 184, 272, 304, 323, 368, 391, 437, 646, 782, 874, 1292, 1564, 1748, 1861, 2584, 3128, 3496, 3722, 5168, 6256, 6992, 7429, 7444, 14858, 14888, 29716, 29776, 31637, 35359, 42803, 59432, 63274, 70718, 85606, 118864, 126548, 141436, 171212, 253096, 282872, 342424, 506192, 565744, 601103, 684848, 727651, 813257, 1202206, 1455302, 1626514, 2404412, 2910604, 3253028, 4808824, 5821208, 6506056, 9617648, 11642416, 13012112, 13825369, 27650738, 55301476, 110602952, 221205904]

約数ペア:

[(1, 221205904), (2, 110602952), (4, 55301476), (8, 27650738), (16, 13825369), (17, 13012112), (19, 11642416), (23, 9617648), (34, 6506056), (38, 5821208), (46, 4808824), (68, 3253028), (76, 2910604), (92, 2404412), (136, 1626514), (152, 1455302), (184, 1202206), (272, 813257), (304, 727651), (323, 684848), (368, 601103), (391, 565744), (437, 506192), (646, 342424), (782, 282872), (874, 253096), (1292, 171212), (1564, 141436), (1748, 126548), (1861, 118864), (2584, 85606), (3128, 70718), (3496, 63274), (3722, 59432), (5168, 42803), (6256, 35359), (6992, 31637), (7429, 29776), (7444, 29716), (14858, 14888)]