221290872

素因数分解:

$2^3\times 3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{281}}^1$

素因数の和:477

約数の個数: 128

約数和(自身を含む): 641606400

約数和(自身を除く): 420315528

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 19, 22, 24, 33, 38, 44, 57, 66, 76, 88, 114, 132, 152, 157, 209, 228, 264, 281, 314, 418, 456, 471, 562, 627, 628, 836, 843, 942, 1124, 1254, 1256, 1672, 1686, 1727, 1884, 2248, 2508, 2983, 3091, 3372, 3454, 3768, 5016, 5181, 5339, 5966, 6182, 6744, 6908, 8949, 9273, 10362, 10678, 11932, 12364, 13816, 16017, 17898, 18546, 20724, 21356, 23864, 24728, 32034, 32813, 35796, 37092, 41448, 42712, 44117, 58729, 64068, 65626, 71592, 74184, 88234, 98439, 117458, 128136, 131252, 132351, 176187, 176468, 196878, 234916, 262504, 264702, 352374, 352936, 393756, 469832, 485287, 529404, 704748, 787512, 838223, 970574, 1058808, 1409496, 1455861, 1676446, 1941148, 2514669, 2911722, 3352892, 3882296, 5029338, 5823444, 6705784, 9220453, 10058676, 11646888, 18440906, 20117352, 27661359, 36881812, 55322718, 73763624, 110645436, 221290872]

約数ペア:

[(1, 221290872), (2, 110645436), (3, 73763624), (4, 55322718), (6, 36881812), (8, 27661359), (11, 20117352), (12, 18440906), (19, 11646888), (22, 10058676), (24, 9220453), (33, 6705784), (38, 5823444), (44, 5029338), (57, 3882296), (66, 3352892), (76, 2911722), (88, 2514669), (114, 1941148), (132, 1676446), (152, 1455861), (157, 1409496), (209, 1058808), (228, 970574), (264, 838223), (281, 787512), (314, 704748), (418, 529404), (456, 485287), (471, 469832), (562, 393756), (627, 352936), (628, 352374), (836, 264702), (843, 262504), (942, 234916), (1124, 196878), (1254, 176468), (1256, 176187), (1672, 132351), (1686, 131252), (1727, 128136), (1884, 117458), (2248, 98439), (2508, 88234), (2983, 74184), (3091, 71592), (3372, 65626), (3454, 64068), (3768, 58729), (5016, 44117), (5181, 42712), (5339, 41448), (5966, 37092), (6182, 35796), (6744, 32813), (6908, 32034), (8949, 24728), (9273, 23864), (10362, 21356), (10678, 20724), (11932, 18546), (12364, 17898), (13816, 16017)]