20431476

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{293}}^1$

素因数の和:465

約数の個数: 72

約数和(自身を含む): 56183400

約数和(自身を除く): 35751924

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 149, 156, 234, 293, 298, 447, 468, 586, 596, 879, 894, 1172, 1341, 1758, 1788, 1937, 2637, 2682, 3516, 3809, 3874, 5274, 5364, 5811, 7618, 7748, 10548, 11427, 11622, 15236, 17433, 22854, 23244, 34281, 34866, 43657, 45708, 68562, 69732, 87314, 130971, 137124, 174628, 261942, 392913, 523884, 567541, 785826, 1135082, 1571652, 1702623, 2270164, 3405246, 5107869, 6810492, 10215738, 20431476]

約数ペア:

[(1, 20431476), (2, 10215738), (3, 6810492), (4, 5107869), (6, 3405246), (9, 2270164), (12, 1702623), (13, 1571652), (18, 1135082), (26, 785826), (36, 567541), (39, 523884), (52, 392913), (78, 261942), (117, 174628), (149, 137124), (156, 130971), (234, 87314), (293, 69732), (298, 68562), (447, 45708), (468, 43657), (586, 34866), (596, 34281), (879, 23244), (894, 22854), (1172, 17433), (1341, 15236), (1758, 11622), (1788, 11427), (1937, 10548), (2637, 7748), (2682, 7618), (3516, 5811), (3809, 5364), (3874, 5274)]