81781236

素因数分解:

$2^2\times 3^2\times {\mathrm{61}}^1\times {\mathrm{167}}^1\times {\mathrm{223}}^1$

素因数の和:461

約数の個数: 72

約数和(自身を含む): 212319744

約数和(自身を除く): 130538508

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 61, 122, 167, 183, 223, 244, 334, 366, 446, 501, 549, 668, 669, 732, 892, 1002, 1098, 1338, 1503, 2004, 2007, 2196, 2676, 3006, 4014, 6012, 8028, 10187, 13603, 20374, 27206, 30561, 37241, 40748, 40809, 54412, 61122, 74482, 81618, 91683, 111723, 122244, 122427, 148964, 163236, 183366, 223446, 244854, 335169, 366732, 446892, 489708, 670338, 1340676, 2271701, 4543402, 6815103, 9086804, 13630206, 20445309, 27260412, 40890618, 81781236]

約数ペア:

[(1, 81781236), (2, 40890618), (3, 27260412), (4, 20445309), (6, 13630206), (9, 9086804), (12, 6815103), (18, 4543402), (36, 2271701), (61, 1340676), (122, 670338), (167, 489708), (183, 446892), (223, 366732), (244, 335169), (334, 244854), (366, 223446), (446, 183366), (501, 163236), (549, 148964), (668, 122427), (669, 122244), (732, 111723), (892, 91683), (1002, 81618), (1098, 74482), (1338, 61122), (1503, 54412), (2004, 40809), (2007, 40748), (2196, 37241), (2676, 30561), (3006, 27206), (4014, 20374), (6012, 13603), (8028, 10187)]