19928644490

素因数分解:

$2^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{73}}^1\times {\mathrm{251}}^1\times {\mathrm{1783}}^1$

素因数の和:2175

約数の個数: 64

約数和(自身を含む): 37127123712

約数和(自身を除く): 17198479222

約数列:

[1, 2, 5, 10, 61, 73, 122, 146, 251, 305, 365, 502, 610, 730, 1255, 1783, 2510, 3566, 4453, 8906, 8915, 15311, 17830, 18323, 22265, 30622, 36646, 44530, 76555, 91615, 108763, 130159, 153110, 183230, 217526, 260318, 447533, 543815, 650795, 895066, 1087630, 1117703, 1301590, 2235406, 2237665, 4475330, 5588515, 7939699, 11177030, 15879398, 27299513, 32669909, 39698495, 54599026, 65339818, 79396990, 136497565, 163349545, 272995130, 326699090, 1992864449, 3985728898, 9964322245, 19928644490]

約数ペア:

[(1, 19928644490), (2, 9964322245), (5, 3985728898), (10, 1992864449), (61, 326699090), (73, 272995130), (122, 163349545), (146, 136497565), (251, 79396990), (305, 65339818), (365, 54599026), (502, 39698495), (610, 32669909), (730, 27299513), (1255, 15879398), (1783, 11177030), (2510, 7939699), (3566, 5588515), (4453, 4475330), (8906, 2237665), (8915, 2235406), (15311, 1301590), (17830, 1117703), (18323, 1087630), (22265, 895066), (30622, 650795), (36646, 543815), (44530, 447533), (76555, 260318), (91615, 217526), (108763, 183230), (130159, 153110)]