28087928

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{107}}^1\times {\mathrm{157}}^1$

素因数の和:300

約数の個数: 64

約数和(自身を含む): 61430400

約数和(自身を除く): 33342472

約数列:

[1, 2, 4, 8, 11, 19, 22, 38, 44, 76, 88, 107, 152, 157, 209, 214, 314, 418, 428, 628, 836, 856, 1177, 1256, 1672, 1727, 2033, 2354, 2983, 3454, 4066, 4708, 5966, 6908, 8132, 9416, 11932, 13816, 16264, 16799, 22363, 23864, 32813, 33598, 44726, 65626, 67196, 89452, 131252, 134392, 178904, 184789, 262504, 319181, 369578, 638362, 739156, 1276724, 1478312, 2553448, 3510991, 7021982, 14043964, 28087928]

約数ペア:

[(1, 28087928), (2, 14043964), (4, 7021982), (8, 3510991), (11, 2553448), (19, 1478312), (22, 1276724), (38, 739156), (44, 638362), (76, 369578), (88, 319181), (107, 262504), (152, 184789), (157, 178904), (209, 134392), (214, 131252), (314, 89452), (418, 67196), (428, 65626), (628, 44726), (836, 33598), (856, 32813), (1177, 23864), (1256, 22363), (1672, 16799), (1727, 16264), (2033, 13816), (2354, 11932), (2983, 9416), (3454, 8132), (4066, 6908), (4708, 5966)]