278220228

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{2221}}^1$

素因数の和:2325

約数の個数: 96

約数和(自身を含む): 773469312

約数和(自身を除く): 495249084

約数列:

[1, 2, 3, 4, 6, 11, 12, 13, 22, 26, 33, 39, 44, 52, 66, 73, 78, 132, 143, 146, 156, 219, 286, 292, 429, 438, 572, 803, 858, 876, 949, 1606, 1716, 1898, 2221, 2409, 2847, 3212, 3796, 4442, 4818, 5694, 6663, 8884, 9636, 10439, 11388, 13326, 20878, 24431, 26652, 28873, 31317, 41756, 48862, 57746, 62634, 73293, 86619, 97724, 115492, 125268, 146586, 162133, 173238, 293172, 317603, 324266, 346476, 486399, 635206, 648532, 952809, 972798, 1270412, 1783463, 1905618, 1945596, 2107729, 3566926, 3811236, 4215458, 5350389, 6323187, 7133852, 8430916, 10700778, 12646374, 21401556, 23185019, 25292748, 46370038, 69555057, 92740076, 139110114, 278220228]

約数ペア:

[(1, 278220228), (2, 139110114), (3, 92740076), (4, 69555057), (6, 46370038), (11, 25292748), (12, 23185019), (13, 21401556), (22, 12646374), (26, 10700778), (33, 8430916), (39, 7133852), (44, 6323187), (52, 5350389), (66, 4215458), (73, 3811236), (78, 3566926), (132, 2107729), (143, 1945596), (146, 1905618), (156, 1783463), (219, 1270412), (286, 972798), (292, 952809), (429, 648532), (438, 635206), (572, 486399), (803, 346476), (858, 324266), (876, 317603), (949, 293172), (1606, 173238), (1716, 162133), (1898, 146586), (2221, 125268), (2409, 115492), (2847, 97724), (3212, 86619), (3796, 73293), (4442, 62634), (4818, 57746), (5694, 48862), (6663, 41756), (8884, 31317), (9636, 28873), (10439, 26652), (11388, 24431), (13326, 20878)]