19640916

素因数分解:

$2^2\times 3^2\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{479}}^1$

素因数の和:573

約数の個数: 72

約数和(自身を含む): 53464320

約数和(自身を除く): 33823404

約数列:

[1, 2, 3, 4, 6, 9, 12, 17, 18, 34, 36, 51, 67, 68, 102, 134, 153, 201, 204, 268, 306, 402, 479, 603, 612, 804, 958, 1139, 1206, 1437, 1916, 2278, 2412, 2874, 3417, 4311, 4556, 5748, 6834, 8143, 8622, 10251, 13668, 16286, 17244, 20502, 24429, 32093, 32572, 41004, 48858, 64186, 73287, 96279, 97716, 128372, 146574, 192558, 288837, 293148, 385116, 545581, 577674, 1091162, 1155348, 1636743, 2182324, 3273486, 4910229, 6546972, 9820458, 19640916]

約数ペア:

[(1, 19640916), (2, 9820458), (3, 6546972), (4, 4910229), (6, 3273486), (9, 2182324), (12, 1636743), (17, 1155348), (18, 1091162), (34, 577674), (36, 545581), (51, 385116), (67, 293148), (68, 288837), (102, 192558), (134, 146574), (153, 128372), (201, 97716), (204, 96279), (268, 73287), (306, 64186), (402, 48858), (479, 41004), (603, 32572), (612, 32093), (804, 24429), (958, 20502), (1139, 17244), (1206, 16286), (1437, 13668), (1916, 10251), (2278, 8622), (2412, 8143), (2874, 6834), (3417, 5748), (4311, 4556)]